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Finding the Fourth Proportional to 67,394.84, 101,107.14 and 20,013.78

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Solution

The fourth proportional to 67,394.84, 101,107.14 and 20,013.78 is: 30,025.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,394.84 : 101,107.14 = 20,013.78 : x
  2. Step 2: Convert to fraction form
    67,394.84/101,107.14 = 20,013.78/x
  3. Step 3: Cross multiply
    67,394.84x = 101,107.14 × 20,013.78
  4. Step 4: Simplify right side
    67,394.84x = 2,023,536,360.49
  5. Step 5: Solve for x
    x = 2,023,536,360.49/67,394.84
  6. Step 6: Final answer
    x = 30,025.10

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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.