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Finding the Fourth Proportional to 75,131.85, 112,754.88 and 27,791.73

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Solution

The fourth proportional to 75,131.85, 112,754.88 and 27,791.73 is: 41,708.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,131.85 : 112,754.88 = 27,791.73 : x
  2. Step 2: Convert to fraction form
    75,131.85/112,754.88 = 27,791.73/x
  3. Step 3: Cross multiply
    75,131.85x = 112,754.88 × 27,791.73
  4. Step 4: Simplify right side
    75,131.85x = 3,133,653,181.14
  5. Step 5: Solve for x
    x = 3,133,653,181.14/75,131.85
  6. Step 6: Final answer
    x = 41,708.72

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1.5x scale

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.