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Finding the Fourth Proportional to 67,404.20, 101,106.30 and 54,282.20

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Solution

The fourth proportional to 67,404.20, 101,106.30 and 54,282.20 is: 81,423.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,404.20 : 101,106.30 = 54,282.20 : x
  2. Step 2: Convert to fraction form
    67,404.20/101,106.30 = 54,282.20/x
  3. Step 3: Cross multiply
    67,404.20x = 101,106.30 × 54,282.20
  4. Step 4: Simplify right side
    67,404.20x = 5,488,272,397.86
  5. Step 5: Solve for x
    x = 5,488,272,397.86/67,404.20
  6. Step 6: Final answer
    x = 81,423.30

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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.