Finding the Fourth Proportional to 88,738.20, 122,331.50 and 54,723.84
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Solution
The fourth proportional to 88,738.20, 122,331.50 and 54,723.84 is: 75,440.45
Step by Step Solution
- Step 1: Write the proportion equation
88,738.20 : 122,331.50 = 54,723.84 : x - Step 2: Convert to fraction form
88,738.20/122,331.50 = 54,723.84/x - Step 3: Cross multiply
88,738.20x = 122,331.50 × 54,723.84 - Step 4: Simplify right side
88,738.20x = 6,694,449,432.96 - Step 5: Solve for x
x = 6,694,449,432.96/88,738.20 - Step 6: Final answer
x = 75,440.45
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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.