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Finding the Fourth Proportional to 67,520.28, 101,203.20 and 42,231.28

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Solution

The fourth proportional to 67,520.28, 101,203.20 and 42,231.28 is: 63,298.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,520.28 : 101,203.20 = 42,231.28 : x
  2. Step 2: Convert to fraction form
    67,520.28/101,203.20 = 42,231.28/x
  3. Step 3: Cross multiply
    67,520.28x = 101,203.20 × 42,231.28
  4. Step 4: Simplify right side
    67,520.28x = 4,273,940,676.10
  5. Step 5: Solve for x
    x = 4,273,940,676.10/67,520.28
  6. Step 6: Final answer
    x = 63,298.62

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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.