Home / 90,343.88-135,535.22-27,158.75

Finding the Fourth Proportional to 90,343.88, 135,535.22 and 27,158.75

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Solution

The fourth proportional to 90,343.88, 135,535.22 and 27,158.75 is: 40,743.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,343.88 : 135,535.22 = 27,158.75 : x
  2. Step 2: Convert to fraction form
    90,343.88/135,535.22 = 27,158.75/x
  3. Step 3: Cross multiply
    90,343.88x = 135,535.22 × 27,158.75
  4. Step 4: Simplify right side
    90,343.88x = 3,680,967,156.18
  5. Step 5: Solve for x
    x = 3,680,967,156.18/90,343.88
  6. Step 6: Final answer
    x = 40,743.96

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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.