Home / 87,669.24-131,420.61-28,463.46

Finding the Fourth Proportional to 87,669.24, 131,420.61 and 28,463.46

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Solution

The fourth proportional to 87,669.24, 131,420.61 and 28,463.46 is: 42,668.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,669.24 : 131,420.61 = 28,463.46 : x
  2. Step 2: Convert to fraction form
    87,669.24/131,420.61 = 28,463.46/x
  3. Step 3: Cross multiply
    87,669.24x = 131,420.61 × 28,463.46
  4. Step 4: Simplify right side
    87,669.24x = 3,740,685,275.91
  5. Step 5: Solve for x
    x = 3,740,685,275.91/87,669.24
  6. Step 6: Final answer
    x = 42,668.16

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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.