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Finding the Fourth Proportional to 67,553.83, 101,335.84 and 20,165.18

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Solution

The fourth proportional to 67,553.83, 101,335.84 and 20,165.18 is: 30,249.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,553.83 : 101,335.84 = 20,165.18 : x
  2. Step 2: Convert to fraction form
    67,553.83/101,335.84 = 20,165.18/x
  3. Step 3: Cross multiply
    67,553.83x = 101,335.84 × 20,165.18
  4. Step 4: Simplify right side
    67,553.83x = 2,043,455,454.05
  5. Step 5: Solve for x
    x = 2,043,455,454.05/67,553.83
  6. Step 6: Final answer
    x = 30,249.29

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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.