Home / 75,691.88-113,583.18-31,319.24

Finding the Fourth Proportional to 75,691.88, 113,583.18 and 31,319.24

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Solution

The fourth proportional to 75,691.88, 113,583.18 and 31,319.24 is: 46,997.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,691.88 : 113,583.18 = 31,319.24 : x
  2. Step 2: Convert to fraction form
    75,691.88/113,583.18 = 31,319.24/x
  3. Step 3: Cross multiply
    75,691.88x = 113,583.18 × 31,319.24
  4. Step 4: Simplify right side
    75,691.88x = 3,557,338,874.38
  5. Step 5: Solve for x
    x = 3,557,338,874.38/75,691.88
  6. Step 6: Final answer
    x = 46,997.63

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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.