Home / 87,680.93-120,999.65-47,394.66

Finding the Fourth Proportional to 87,680.93, 120,999.65 and 47,394.66

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Solution

The fourth proportional to 87,680.93, 120,999.65 and 47,394.66 is: 65,404.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,680.93 : 120,999.65 = 47,394.66 : x
  2. Step 2: Convert to fraction form
    87,680.93/120,999.65 = 47,394.66/x
  3. Step 3: Cross multiply
    87,680.93x = 120,999.65 × 47,394.66
  4. Step 4: Simplify right side
    87,680.93x = 5,734,737,034.90
  5. Step 5: Solve for x
    x = 5,734,737,034.90/87,680.93
  6. Step 6: Final answer
    x = 65,404.61

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1.5x scale

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.