Home / 87,458.20-120,671.56-49,753.24

Finding the Fourth Proportional to 87,458.20, 120,671.56 and 49,753.24

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Solution

The fourth proportional to 87,458.20, 120,671.56 and 49,753.24 is: 68,647.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,458.20 : 120,671.56 = 49,753.24 : x
  2. Step 2: Convert to fraction form
    87,458.20/120,671.56 = 49,753.24/x
  3. Step 3: Cross multiply
    87,458.20x = 120,671.56 × 49,753.24
  4. Step 4: Simplify right side
    87,458.20x = 6,003,801,085.85
  5. Step 5: Solve for x
    x = 6,003,801,085.85/87,458.20
  6. Step 6: Final answer
    x = 68,647.66

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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.