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Finding the Fourth Proportional to 67,414.80, 101,095.72 and 20,017.20

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Solution

The fourth proportional to 67,414.80, 101,095.72 and 20,017.20 is: 30,017.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,414.80 : 101,095.72 = 20,017.20 : x
  2. Step 2: Convert to fraction form
    67,414.80/101,095.72 = 20,017.20/x
  3. Step 3: Cross multiply
    67,414.80x = 101,095.72 × 20,017.20
  4. Step 4: Simplify right side
    67,414.80x = 2,023,653,246.38
  5. Step 5: Solve for x
    x = 2,023,653,246.38/67,414.80
  6. Step 6: Final answer
    x = 30,017.94

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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.