Question

Are 30, 40, 45, and 60 in proportion?

Answer 1

Ratio of 30 to 40 = `30/40` = 3: 4.

Ratio of 45 to 60 = `45/60` = 3: 4.

Since, 30: 40 = 45: 60

Therefore, 30, 40, 45, and 60 are in proportion.