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Finding the Fourth Proportional to 67,404.70, 101,107.05 and 20,019.70

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Solution

The fourth proportional to 67,404.70, 101,107.05 and 20,019.70 is: 30,029.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,404.70 : 101,107.05 = 20,019.70 : x
  2. Step 2: Convert to fraction form
    67,404.70/101,107.05 = 20,019.70/x
  3. Step 3: Cross multiply
    67,404.70x = 101,107.05 × 20,019.70
  4. Step 4: Simplify right side
    67,404.70x = 2,024,132,808.89
  5. Step 5: Solve for x
    x = 2,024,132,808.89/67,404.70
  6. Step 6: Final answer
    x = 30,029.55

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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.