Home / 55,126.20-76,067.82-31,248.12

Finding the Fourth Proportional to 55,126.20, 76,067.82 and 31,248.12

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Solution

The fourth proportional to 55,126.20, 76,067.82 and 31,248.12 is: 43,118.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,126.20 : 76,067.82 = 31,248.12 : x
  2. Step 2: Convert to fraction form
    55,126.20/76,067.82 = 31,248.12/x
  3. Step 3: Cross multiply
    55,126.20x = 76,067.82 × 31,248.12
  4. Step 4: Simplify right side
    55,126.20x = 2,376,976,367.50
  5. Step 5: Solve for x
    x = 2,376,976,367.50/55,126.20
  6. Step 6: Final answer
    x = 43,118.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.