Home / 90,329.88-135,517.29-27,151.02

Finding the Fourth Proportional to 90,329.88, 135,517.29 and 27,151.02

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Solution

The fourth proportional to 90,329.88, 135,517.29 and 27,151.02 is: 40,733.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,329.88 : 135,517.29 = 27,151.02 : x
  2. Step 2: Convert to fraction form
    90,329.88/135,517.29 = 27,151.02/x
  3. Step 3: Cross multiply
    90,329.88x = 135,517.29 × 27,151.02
  4. Step 4: Simplify right side
    90,329.88x = 3,679,432,651.14
  5. Step 5: Solve for x
    x = 3,679,432,651.14/90,329.88
  6. Step 6: Final answer
    x = 40,733.28

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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.