Home / 87,491.52-131,223.24-31,321.20

Finding the Fourth Proportional to 87,491.52, 131,223.24 and 31,321.20

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Solution

The fourth proportional to 87,491.52, 131,223.24 and 31,321.20 is: 46,976.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,491.52 : 131,223.24 = 31,321.20 : x
  2. Step 2: Convert to fraction form
    87,491.52/131,223.24 = 31,321.20/x
  3. Step 3: Cross multiply
    87,491.52x = 131,223.24 × 31,321.20
  4. Step 4: Simplify right side
    87,491.52x = 4,110,069,344.69
  5. Step 5: Solve for x
    x = 4,110,069,344.69/87,491.52
  6. Step 6: Final answer
    x = 46,976.77

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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.