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Finding the Fourth Proportional to 87,967.62, 131,976 and 28,844.91

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Solution

The fourth proportional to 87,967.62, 131,976 and 28,844.91 is: 43,275.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,967.62 : 131,976 = 28,844.91 : x
  2. Step 2: Convert to fraction form
    87,967.62/131,976 = 28,844.91/x
  3. Step 3: Cross multiply
    87,967.62x = 131,976 × 28,844.91
  4. Step 4: Simplify right side
    87,967.62x = 3,806,835,842.16
  5. Step 5: Solve for x
    x = 3,806,835,842.16/87,967.62
  6. Step 6: Final answer
    x = 43,275.42

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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.