Home / 87,680.52-131,488.48-31,505.60

Finding the Fourth Proportional to 87,680.52, 131,488.48 and 31,505.60

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Solution

The fourth proportional to 87,680.52, 131,488.48 and 31,505.60 is: 47,246.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,680.52 : 131,488.48 = 31,505.60 : x
  2. Step 2: Convert to fraction form
    87,680.52/131,488.48 = 31,505.60/x
  3. Step 3: Cross multiply
    87,680.52x = 131,488.48 × 31,505.60
  4. Step 4: Simplify right side
    87,680.52x = 4,142,623,455.49
  5. Step 5: Solve for x
    x = 4,142,623,455.49/87,680.52
  6. Step 6: Final answer
    x = 47,246.79

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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.