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Finding the Fourth Proportional to 67,650.53, 101,463.92 and 20,903.81

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Solution

The fourth proportional to 67,650.53, 101,463.92 and 20,903.81 is: 31,352.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,650.53 : 101,463.92 = 20,903.81 : x
  2. Step 2: Convert to fraction form
    67,650.53/101,463.92 = 20,903.81/x
  3. Step 3: Cross multiply
    67,650.53x = 101,463.92 × 20,903.81
  4. Step 4: Simplify right side
    67,650.53x = 2,120,982,401.02
  5. Step 5: Solve for x
    x = 2,120,982,401.02/67,650.53
  6. Step 6: Final answer
    x = 31,352.04

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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.