Home / 90,380.53-135,570.11-27,200.38

Finding the Fourth Proportional to 90,380.53, 135,570.11 and 27,200.38

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Solution

The fourth proportional to 90,380.53, 135,570.11 and 27,200.38 is: 40,800.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,380.53 : 135,570.11 = 27,200.38 : x
  2. Step 2: Convert to fraction form
    90,380.53/135,570.11 = 27,200.38/x
  3. Step 3: Cross multiply
    90,380.53x = 135,570.11 × 27,200.38
  4. Step 4: Simplify right side
    90,380.53x = 3,687,557,694.79
  5. Step 5: Solve for x
    x = 3,687,557,694.79/90,380.53
  6. Step 6: Final answer
    x = 40,800.36

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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.