Home / 87,590.20-131,261.10-67,776.52

Finding the Fourth Proportional to 87,590.20, 131,261.10 and 67,776.52

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Solution

The fourth proportional to 87,590.20, 131,261.10 and 67,776.52 is: 101,568.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,590.20 : 131,261.10 = 67,776.52 : x
  2. Step 2: Convert to fraction form
    87,590.20/131,261.10 = 67,776.52/x
  3. Step 3: Cross multiply
    87,590.20x = 131,261.10 × 67,776.52
  4. Step 4: Simplify right side
    87,590.20x = 8,896,420,569.37
  5. Step 5: Solve for x
    x = 8,896,420,569.37/87,590.20
  6. Step 6: Final answer
    x = 101,568.68

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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.