Home / 90,553.38-135,837.56-28,223.88

Finding the Fourth Proportional to 90,553.38, 135,837.56 and 28,223.88

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Solution

The fourth proportional to 90,553.38, 135,837.56 and 28,223.88 is: 42,338.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,553.38 : 135,837.56 = 28,223.88 : x
  2. Step 2: Convert to fraction form
    90,553.38/135,837.56 = 28,223.88/x
  3. Step 3: Cross multiply
    90,553.38x = 135,837.56 × 28,223.88
  4. Step 4: Simplify right side
    90,553.38x = 3,833,862,992.93
  5. Step 5: Solve for x
    x = 3,833,862,992.93/90,553.38
  6. Step 6: Final answer
    x = 42,338.15

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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.