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Finding the Fourth Proportional to 79,387.92, 119,067.12 and 23,215.68

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Solution

The fourth proportional to 79,387.92, 119,067.12 and 23,215.68 is: 34,819.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,387.92 : 119,067.12 = 23,215.68 : x
  2. Step 2: Convert to fraction form
    79,387.92/119,067.12 = 23,215.68/x
  3. Step 3: Cross multiply
    79,387.92x = 119,067.12 × 23,215.68
  4. Step 4: Simplify right side
    79,387.92x = 2,764,224,156.44
  5. Step 5: Solve for x
    x = 2,764,224,156.44/79,387.92
  6. Step 6: Final answer
    x = 34,819.20

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1.5x scale

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.