Home / 56,135.97-84,194.38-18,691.79

Finding the Fourth Proportional to 56,135.97, 84,194.38 and 18,691.79

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Solution

The fourth proportional to 56,135.97, 84,194.38 and 18,691.79 is: 28,034.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,135.97 : 84,194.38 = 18,691.79 : x
  2. Step 2: Convert to fraction form
    56,135.97/84,194.38 = 18,691.79/x
  3. Step 3: Cross multiply
    56,135.97x = 84,194.38 × 18,691.79
  4. Step 4: Simplify right side
    56,135.97x = 1,573,743,833.90
  5. Step 5: Solve for x
    x = 1,573,743,833.90/56,135.97
  6. Step 6: Final answer
    x = 28,034.50

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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.