Finding the Fourth Proportional to 73,129.09, 100,949.22 and 44,457.91
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Solution
The fourth proportional to 73,129.09, 100,949.22 and 44,457.91 is: 61,370.80
Step by Step Solution
- Step 1: Write the proportion equation
73,129.09 : 100,949.22 = 44,457.91 : x - Step 2: Convert to fraction form
73,129.09/100,949.22 = 44,457.91/x - Step 3: Cross multiply
73,129.09x = 100,949.22 × 44,457.91 - Step 4: Simplify right side
73,129.09x = 4,487,991,007.24 - Step 5: Solve for x
x = 4,487,991,007.24/73,129.09 - Step 6: Final answer
x = 61,370.80
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.