Question

Which number make this sentence true 27:45=45:x​

Answer 1

x = 75

Explanation:

Let's consider the following equality.

27:45=45:x​

We can write this proportion in the fractional form.

27/45 = 45/x

We can solve for x using the Cross Product Property of Proportions.

27 × x = 45 × 45

27 × x = 2025

x = 2025/27

x = 75

The unknown number that satisfies the proportion is x = 75.

Answer 2

x = 75

Explanation:

We can write this as a proportion

27 45

--------- = --------

45 x

We can use cross products to solve

27 x = 45 *45

Divide each side by 27

27 x/27 = 45*45 /27

x = 75