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Finding the Fourth Proportional to 73,037, 100,791.07 and 39,503

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Solution

The fourth proportional to 73,037, 100,791.07 and 39,503 is: 54,514.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,037 : 100,791.07 = 39,503 : x
  2. Step 2: Convert to fraction form
    73,037/100,791.07 = 39,503/x
  3. Step 3: Cross multiply
    73,037x = 100,791.07 × 39,503
  4. Step 4: Simplify right side
    73,037x = 3,981,549,638.21
  5. Step 5: Solve for x
    x = 3,981,549,638.21/73,037
  6. Step 6: Final answer
    x = 54,514.15

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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.