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Finding the Fourth Proportional to 63,294.26, 87,357 and 38,143.76

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Solution

The fourth proportional to 63,294.26, 87,357 and 38,143.76 is: 52,644.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,294.26 : 87,357 = 38,143.76 : x
  2. Step 2: Convert to fraction form
    63,294.26/87,357 = 38,143.76/x
  3. Step 3: Cross multiply
    63,294.26x = 87,357 × 38,143.76
  4. Step 4: Simplify right side
    63,294.26x = 3,332,124,442.32
  5. Step 5: Solve for x
    x = 3,332,124,442.32/63,294.26
  6. Step 6: Final answer
    x = 52,644.97

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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.