Home / 90,964.29-136,446.44-27,781.86

Finding the Fourth Proportional to 90,964.29, 136,446.44 and 27,781.86

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Solution

The fourth proportional to 90,964.29, 136,446.44 and 27,781.86 is: 41,672.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,964.29 : 136,446.44 = 27,781.86 : x
  2. Step 2: Convert to fraction form
    90,964.29/136,446.44 = 27,781.86/x
  3. Step 3: Cross multiply
    90,964.29x = 136,446.44 × 27,781.86
  4. Step 4: Simplify right side
    90,964.29x = 3,790,735,754.67
  5. Step 5: Solve for x
    x = 3,790,735,754.67/90,964.29
  6. Step 6: Final answer
    x = 41,672.79

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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.