Finding the Fourth Proportional to 75,451.92, 113,225.46 and 42,193.80
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Solution
The fourth proportional to 75,451.92, 113,225.46 and 42,193.80 is: 63,317.31
Step by Step Solution
- Step 1: Write the proportion equation
75,451.92 : 113,225.46 = 42,193.80 : x - Step 2: Convert to fraction form
75,451.92/113,225.46 = 42,193.80/x - Step 3: Cross multiply
75,451.92x = 113,225.46 × 42,193.80 - Step 4: Simplify right side
75,451.92x = 4,777,412,414.15 - Step 5: Solve for x
x = 4,777,412,414.15/75,451.92 - Step 6: Final answer
x = 63,317.31
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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.