Finding the Fourth Proportional to 81,843.95, 122,724.41 and 37,432.66
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Solution
The fourth proportional to 81,843.95, 122,724.41 and 37,432.66 is: 56,129.99
Step by Step Solution
- Step 1: Write the proportion equation
81,843.95 : 122,724.41 = 37,432.66 : x - Step 2: Convert to fraction form
81,843.95/122,724.41 = 37,432.66/x - Step 3: Cross multiply
81,843.95x = 122,724.41 × 37,432.66 - Step 4: Simplify right side
81,843.95x = 4,593,900,499.61 - Step 5: Solve for x
x = 4,593,900,499.61/81,843.95 - Step 6: Final answer
x = 56,129.99
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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.