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Finding the Fourth Proportional to 67,220.90, 100,788.15 and 27,793.70

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Solution

The fourth proportional to 67,220.90, 100,788.15 and 27,793.70 is: 41,672.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,220.90 : 100,788.15 = 27,793.70 : x
  2. Step 2: Convert to fraction form
    67,220.90/100,788.15 = 27,793.70/x
  3. Step 3: Cross multiply
    67,220.90x = 100,788.15 × 27,793.70
  4. Step 4: Simplify right side
    67,220.90x = 2,801,275,604.66
  5. Step 5: Solve for x
    x = 2,801,275,604.66/67,220.90
  6. Step 6: Final answer
    x = 41,672.69

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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.