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Finding the Fourth Proportional to 72,793.44, 109,190.13 and 20,202.91

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Solution

The fourth proportional to 72,793.44, 109,190.13 and 20,202.91 is: 30,304.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,793.44 : 109,190.13 = 20,202.91 : x
  2. Step 2: Convert to fraction form
    72,793.44/109,190.13 = 20,202.91/x
  3. Step 3: Cross multiply
    72,793.44x = 109,190.13 × 20,202.91
  4. Step 4: Simplify right side
    72,793.44x = 2,205,958,020.54
  5. Step 5: Solve for x
    x = 2,205,958,020.54/72,793.44
  6. Step 6: Final answer
    x = 30,304.35

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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.