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Finding the Fourth Proportional to 67,553.90, 101,330.85 and 18,305.90

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Solution

The fourth proportional to 67,553.90, 101,330.85 and 18,305.90 is: 27,458.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,553.90 : 101,330.85 = 18,305.90 : x
  2. Step 2: Convert to fraction form
    67,553.90/101,330.85 = 18,305.90/x
  3. Step 3: Cross multiply
    67,553.90x = 101,330.85 × 18,305.90
  4. Step 4: Simplify right side
    67,553.90x = 1,854,952,407.02
  5. Step 5: Solve for x
    x = 1,854,952,407.02/67,553.90
  6. Step 6: Final answer
    x = 27,458.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.