Home / 67,261.02-100,906.38-20,517.54

Finding the Fourth Proportional to 67,261.02, 100,906.38 and 20,517.54

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Solution

The fourth proportional to 67,261.02, 100,906.38 and 20,517.54 is: 30,780.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,261.02 : 100,906.38 = 20,517.54 : x
  2. Step 2: Convert to fraction form
    67,261.02/100,906.38 = 20,517.54/x
  3. Step 3: Cross multiply
    67,261.02x = 100,906.38 × 20,517.54
  4. Step 4: Simplify right side
    67,261.02x = 2,070,350,687.91
  5. Step 5: Solve for x
    x = 2,070,350,687.91/67,261.02
  6. Step 6: Final answer
    x = 30,780.84

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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.