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Finding the Fourth Proportional to 73,189, 101,000.84 and 39,655

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Solution

The fourth proportional to 73,189, 101,000.84 and 39,655 is: 54,723.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,189 : 101,000.84 = 39,655 : x
  2. Step 2: Convert to fraction form
    73,189/101,000.84 = 39,655/x
  3. Step 3: Cross multiply
    73,189x = 101,000.84 × 39,655
  4. Step 4: Simplify right side
    73,189x = 4,005,188,310.20
  5. Step 5: Solve for x
    x = 4,005,188,310.20/73,189
  6. Step 6: Final answer
    x = 54,723.91

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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.