Question

Are 30, 40, 45 and 60 in proportion?​

Answer 1

Here is your answer:-

yes they are in proportion!!

Ratio of 30 to 40 = = 3: 4. Ratio of 45 to 60 = = 3: 4. Therefore, 30, 40, 45, and 60 are in proportion.

HOPE this helps you ♥️✅✌

Answer 2

30:40::45:60
Product of means = Product of extremes
40x45=30x60
1800=1800
Yep in proportion