Finding the Fourth Proportional to 75,432.69, 113,163.63 and 25,520.92
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Solution
The fourth proportional to 75,432.69, 113,163.63 and 25,520.92 is: 38,286.32
Step by Step Solution
- Step 1: Write the proportion equation
75,432.69 : 113,163.63 = 25,520.92 : x - Step 2: Convert to fraction form
75,432.69/113,163.63 = 25,520.92/x - Step 3: Cross multiply
75,432.69x = 113,163.63 × 25,520.92 - Step 4: Simplify right side
75,432.69x = 2,888,040,349.63 - Step 5: Solve for x
x = 2,888,040,349.63/75,432.69 - Step 6: Final answer
x = 38,286.32
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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.