Home / 87,449.48-131,201.90-31,288.36

Finding the Fourth Proportional to 87,449.48, 131,201.90 and 31,288.36

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Solution

The fourth proportional to 87,449.48, 131,201.90 and 31,288.36 is: 46,942.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,449.48 : 131,201.90 = 31,288.36 : x
  2. Step 2: Convert to fraction form
    87,449.48/131,201.90 = 31,288.36/x
  3. Step 3: Cross multiply
    87,449.48x = 131,201.90 × 31,288.36
  4. Step 4: Simplify right side
    87,449.48x = 4,105,092,279.88
  5. Step 5: Solve for x
    x = 4,105,092,279.88/87,449.48
  6. Step 6: Final answer
    x = 46,942.44

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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.