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Finding the Fourth Proportional to 73,293, 101,144.88 and 39,759

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Solution

The fourth proportional to 73,293, 101,144.88 and 39,759 is: 54,867.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,293 : 101,144.88 = 39,759 : x
  2. Step 2: Convert to fraction form
    73,293/101,144.88 = 39,759/x
  3. Step 3: Cross multiply
    73,293x = 101,144.88 × 39,759
  4. Step 4: Simplify right side
    73,293x = 4,021,419,283.92
  5. Step 5: Solve for x
    x = 4,021,419,283.92/73,293
  6. Step 6: Final answer
    x = 54,867.71

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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.