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Finding the Fourth Proportional to 79,134.26, 118,719.17 and 26,542.40

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Solution

The fourth proportional to 79,134.26, 118,719.17 and 26,542.40 is: 39,819.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,134.26 : 118,719.17 = 26,542.40 : x
  2. Step 2: Convert to fraction form
    79,134.26/118,719.17 = 26,542.40/x
  3. Step 3: Cross multiply
    79,134.26x = 118,719.17 × 26,542.40
  4. Step 4: Simplify right side
    79,134.26x = 3,151,091,565.10
  5. Step 5: Solve for x
    x = 3,151,091,565.10/79,134.26
  6. Step 6: Final answer
    x = 39,819.56

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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.