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Finding the Fourth Proportional to 67,394, 101,082.90 and 23,019.78

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Solution

The fourth proportional to 67,394, 101,082.90 and 23,019.78 is: 34,526.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,394 : 101,082.90 = 23,019.78 : x
  2. Step 2: Convert to fraction form
    67,394/101,082.90 = 23,019.78/x
  3. Step 3: Cross multiply
    67,394x = 101,082.90 × 23,019.78
  4. Step 4: Simplify right side
    67,394x = 2,326,906,119.76
  5. Step 5: Solve for x
    x = 2,326,906,119.76/67,394
  6. Step 6: Final answer
    x = 34,526.90

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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.