Home / 87,729.92-131,648.88-40,987.52

Finding the Fourth Proportional to 87,729.92, 131,648.88 and 40,987.52

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Solution

The fourth proportional to 87,729.92, 131,648.88 and 40,987.52 is: 61,506.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,729.92 : 131,648.88 = 40,987.52 : x
  2. Step 2: Convert to fraction form
    87,729.92/131,648.88 = 40,987.52/x
  3. Step 3: Cross multiply
    87,729.92x = 131,648.88 × 40,987.52
  4. Step 4: Simplify right side
    87,729.92x = 5,395,961,101.98
  5. Step 5: Solve for x
    x = 5,395,961,101.98/87,729.92
  6. Step 6: Final answer
    x = 61,506.51

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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.