Home / 85,182.21-127,691.97-31,859.73

Finding the Fourth Proportional to 85,182.21, 127,691.97 and 31,859.73

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Solution

The fourth proportional to 85,182.21, 127,691.97 and 31,859.73 is: 47,759.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,182.21 : 127,691.97 = 31,859.73 : x
  2. Step 2: Convert to fraction form
    85,182.21/127,691.97 = 31,859.73/x
  3. Step 3: Cross multiply
    85,182.21x = 127,691.97 × 31,859.73
  4. Step 4: Simplify right side
    85,182.21x = 4,068,231,687.37
  5. Step 5: Solve for x
    x = 4,068,231,687.37/85,182.21
  6. Step 6: Final answer
    x = 47,759.17

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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.