Finding the Fourth Proportional to 75,658.92, 104,408.43 and 41,666.70
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Solution
The fourth proportional to 75,658.92, 104,408.43 and 41,666.70 is: 57,499.56
Step by Step Solution
- Step 1: Write the proportion equation
75,658.92 : 104,408.43 = 41,666.70 : x - Step 2: Convert to fraction form
75,658.92/104,408.43 = 41,666.70/x - Step 3: Cross multiply
75,658.92x = 104,408.43 × 41,666.70 - Step 4: Simplify right side
75,658.92x = 4,350,354,730.28 - Step 5: Solve for x
x = 4,350,354,730.28/75,658.92 - Step 6: Final answer
x = 57,499.56
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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.