Home / 87,370.52-131,022.50-31,200.12

Finding the Fourth Proportional to 87,370.52, 131,022.50 and 31,200.12

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Solution

The fourth proportional to 87,370.52, 131,022.50 and 31,200.12 is: 46,788.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,370.52 : 131,022.50 = 31,200.12 : x
  2. Step 2: Convert to fraction form
    87,370.52/131,022.50 = 31,200.12/x
  3. Step 3: Cross multiply
    87,370.52x = 131,022.50 × 31,200.12
  4. Step 4: Simplify right side
    87,370.52x = 4,087,917,566.70
  5. Step 5: Solve for x
    x = 4,087,917,566.70/87,370.52
  6. Step 6: Final answer
    x = 46,788.30

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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.