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Finding the Fourth Proportional to 69,613.44, 96,067.98 and 39,398.76

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Solution

The fourth proportional to 69,613.44, 96,067.98 and 39,398.76 is: 54,371.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,613.44 : 96,067.98 = 39,398.76 : x
  2. Step 2: Convert to fraction form
    69,613.44/96,067.98 = 39,398.76/x
  3. Step 3: Cross multiply
    69,613.44x = 96,067.98 × 39,398.76
  4. Step 4: Simplify right side
    69,613.44x = 3,784,959,287.70
  5. Step 5: Solve for x
    x = 3,784,959,287.70/69,613.44
  6. Step 6: Final answer
    x = 54,371.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.