Finding the Fourth Proportional to 80,937.97, 121,442.01 and 43,454.31
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Solution
The fourth proportional to 80,937.97, 121,442.01 and 43,454.31 is: 65,200.28
Step by Step Solution
- Step 1: Write the proportion equation
80,937.97 : 121,442.01 = 43,454.31 : x - Step 2: Convert to fraction form
80,937.97/121,442.01 = 43,454.31/x - Step 3: Cross multiply
80,937.97x = 121,442.01 × 43,454.31 - Step 4: Simplify right side
80,937.97x = 5,277,178,586.61 - Step 5: Solve for x
x = 5,277,178,586.61/80,937.97 - Step 6: Final answer
x = 65,200.28
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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.