Finding the Fourth Proportional to 75,408.17, 113,159.92 and 42,150.05
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Solution
The fourth proportional to 75,408.17, 113,159.92 and 42,150.05 is: 63,251.71
Step by Step Solution
- Step 1: Write the proportion equation
75,408.17 : 113,159.92 = 42,150.05 : x - Step 2: Convert to fraction form
75,408.17/113,159.92 = 42,150.05/x - Step 3: Cross multiply
75,408.17x = 113,159.92 × 42,150.05 - Step 4: Simplify right side
75,408.17x = 4,769,695,711.03 - Step 5: Solve for x
x = 4,769,695,711.03/75,408.17 - Step 6: Final answer
x = 63,251.71
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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.