Home / 87,531.52-131,206.56-40,745.92

Finding the Fourth Proportional to 87,531.52, 131,206.56 and 40,745.92

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Solution

The fourth proportional to 87,531.52, 131,206.56 and 40,745.92 is: 61,076.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,531.52 : 131,206.56 = 40,745.92 : x
  2. Step 2: Convert to fraction form
    87,531.52/131,206.56 = 40,745.92/x
  3. Step 3: Cross multiply
    87,531.52x = 131,206.56 × 40,745.92
  4. Step 4: Simplify right side
    87,531.52x = 5,346,131,997.24
  5. Step 5: Solve for x
    x = 5,346,131,997.24/87,531.52
  6. Step 6: Final answer
    x = 61,076.65

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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.