Finding the Fourth Proportional to 88,657.62, 122,392.68 and 68,469.18
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Solution
The fourth proportional to 88,657.62, 122,392.68 and 68,469.18 is: 94,522.35
Step by Step Solution
- Step 1: Write the proportion equation
88,657.62 : 122,392.68 = 68,469.18 : x - Step 2: Convert to fraction form
88,657.62/122,392.68 = 68,469.18/x - Step 3: Cross multiply
88,657.62x = 122,392.68 × 68,469.18 - Step 4: Simplify right side
88,657.62x = 8,380,126,437.60 - Step 5: Solve for x
x = 8,380,126,437.60/88,657.62 - Step 6: Final answer
x = 94,522.35
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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.