Finding the Fourth Proportional to 92,288.85, 138,432.87 and 25,728.99
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Solution
The fourth proportional to 92,288.85, 138,432.87 and 25,728.99 is: 38,593.37
Step by Step Solution
- Step 1: Write the proportion equation
92,288.85 : 138,432.87 = 25,728.99 : x - Step 2: Convert to fraction form
92,288.85/138,432.87 = 25,728.99/x - Step 3: Cross multiply
92,288.85x = 138,432.87 × 25,728.99 - Step 4: Simplify right side
92,288.85x = 3,561,737,927.90 - Step 5: Solve for x
x = 3,561,737,927.90/92,288.85 - Step 6: Final answer
x = 38,593.37
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1.5x scale
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.