Question

show that 30,40,45,60 are in proportion​

Answer 1

Step-by-step explanation:

yeah it is in proportion as the product of extreme is equal to product of means.

30×60 = 40×45

1800 =1800

or

yes they are in proportion

30*60=1800

40*45=1800

Answer 2

30:40=45:60

30*60=45*40

1800=1800