Finding the Fourth Proportional to 81,592.45, 122,391.69 and 22,432.75
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Solution
The fourth proportional to 81,592.45, 122,391.69 and 22,432.75 is: 33,649.95
Step by Step Solution
- Step 1: Write the proportion equation
81,592.45 : 122,391.69 = 22,432.75 : x - Step 2: Convert to fraction form
81,592.45/122,391.69 = 22,432.75/x - Step 3: Cross multiply
81,592.45x = 122,391.69 × 22,432.75 - Step 4: Simplify right side
81,592.45x = 2,745,582,183.85 - Step 5: Solve for x
x = 2,745,582,183.85/81,592.45 - Step 6: Final answer
x = 33,649.95
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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.