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Finding the Fourth Proportional to 64,691.38, 89,273.19 and 36,397

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Solution

The fourth proportional to 64,691.38, 89,273.19 and 36,397 is: 50,227.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,691.38 : 89,273.19 = 36,397 : x
  2. Step 2: Convert to fraction form
    64,691.38/89,273.19 = 36,397/x
  3. Step 3: Cross multiply
    64,691.38x = 89,273.19 × 36,397
  4. Step 4: Simplify right side
    64,691.38x = 3,249,276,296.43
  5. Step 5: Solve for x
    x = 3,249,276,296.43/64,691.38
  6. Step 6: Final answer
    x = 50,227.35

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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.