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Finding the Fourth Proportional to 67,591.56, 101,392.77 and 20,203.20

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Solution

The fourth proportional to 67,591.56, 101,392.77 and 20,203.20 is: 30,306.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,591.56 : 101,392.77 = 20,203.20 : x
  2. Step 2: Convert to fraction form
    67,591.56/101,392.77 = 20,203.20/x
  3. Step 3: Cross multiply
    67,591.56x = 101,392.77 × 20,203.20
  4. Step 4: Simplify right side
    67,591.56x = 2,048,458,410.86
  5. Step 5: Solve for x
    x = 2,048,458,410.86/67,591.56
  6. Step 6: Final answer
    x = 30,306.42

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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.