Home / 87,701.15-121,027.61-47,414.90

Finding the Fourth Proportional to 87,701.15, 121,027.61 and 47,414.90

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Solution

The fourth proportional to 87,701.15, 121,027.61 and 47,414.90 is: 65,432.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,701.15 : 121,027.61 = 47,414.90 : x
  2. Step 2: Convert to fraction form
    87,701.15/121,027.61 = 47,414.90/x
  3. Step 3: Cross multiply
    87,701.15x = 121,027.61 × 47,414.90
  4. Step 4: Simplify right side
    87,701.15x = 5,738,512,446.50
  5. Step 5: Solve for x
    x = 5,738,512,446.50/87,701.15
  6. Step 6: Final answer
    x = 65,432.58

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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.