Home / 87,836.82-131,761.71-31,710.30

Finding the Fourth Proportional to 87,836.82, 131,761.71 and 31,710.30

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Solution

The fourth proportional to 87,836.82, 131,761.71 and 31,710.30 is: 47,567.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,836.82 : 131,761.71 = 31,710.30 : x
  2. Step 2: Convert to fraction form
    87,836.82/131,761.71 = 31,710.30/x
  3. Step 3: Cross multiply
    87,836.82x = 131,761.71 × 31,710.30
  4. Step 4: Simplify right side
    87,836.82x = 4,178,203,352.61
  5. Step 5: Solve for x
    x = 4,178,203,352.61/87,836.82
  6. Step 6: Final answer
    x = 47,567.79

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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.