Finding the Fourth Proportional to 79,642.38, 119,463.57 and 29,720.46
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Solution
The fourth proportional to 79,642.38, 119,463.57 and 29,720.46 is: 44,580.69
Step by Step Solution
- Step 1: Write the proportion equation
79,642.38 : 119,463.57 = 29,720.46 : x - Step 2: Convert to fraction form
79,642.38/119,463.57 = 29,720.46/x - Step 3: Cross multiply
79,642.38x = 119,463.57 × 29,720.46 - Step 4: Simplify right side
79,642.38x = 3,550,512,253.64 - Step 5: Solve for x
x = 3,550,512,253.64/79,642.38 - Step 6: Final answer
x = 44,580.69
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.