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Finding the Fourth Proportional to 88,154.52, 132,251.34 and 28,987.80

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Solution

The fourth proportional to 88,154.52, 132,251.34 and 28,987.80 is: 43,488.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,154.52 : 132,251.34 = 28,987.80 : x
  2. Step 2: Convert to fraction form
    88,154.52/132,251.34 = 28,987.80/x
  3. Step 3: Cross multiply
    88,154.52x = 132,251.34 × 28,987.80
  4. Step 4: Simplify right side
    88,154.52x = 3,833,675,393.65
  5. Step 5: Solve for x
    x = 3,833,675,393.65/88,154.52
  6. Step 6: Final answer
    x = 43,488.13

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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.