Percent Proportions

Front

What is a percent proportion?

Back

A percent proportion is a way to express a relationship between a part and a whole in terms of percentage. It shows how much one quantity is of another quantity.

Front

How do you find what percent one number is of another?

Back

To find what percent one number (part) is of another number (whole), use the formula: (part/whole) x 100.

Front

What is the formula to find the whole when given a part and a percent?

Back

The formula is: Whole = Part / (Percent/100).

Front

If 75 is 20% of a number, how do you find that number?

Back

Use the formula: Number = Part / (Percent/100). Here, Number = 75 / (20/100) = 375.

Front

If 64 is 40% of a number, what is that number?

Back

Use the formula: Number = 64 / (40/100) = 160.

Front

How do you convert a fraction to a percent?

Back

To convert a fraction to a percent, divide the numerator by the denominator and multiply by 100.

Front

What percent is 30 of 40?

Back

To find the percent, use the formula: Percent = (30/40) x 100 = 75%.

Front

If 9 is 12% of a number, how do you find that number?

Back

Use the formula: Number = 9 / (12/100) = 75.

Front

If 9 is 45% of a number, what is that number?

Back

Use the formula: Number = 9 / (45/100) = 20.

Front

What is the relationship between percent, part, and whole?

Back

Percent is the ratio of the part to the whole, expressed as a fraction of 100.