Home / 80,691.51-111,351.98-43,896.57

Finding the Fourth Proportional to 80,691.51, 111,351.98 and 43,896.57

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Solution

The fourth proportional to 80,691.51, 111,351.98 and 43,896.57 is: 60,576.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,691.51 : 111,351.98 = 43,896.57 : x
  2. Step 2: Convert to fraction form
    80,691.51/111,351.98 = 43,896.57/x
  3. Step 3: Cross multiply
    80,691.51x = 111,351.98 × 43,896.57
  4. Step 4: Simplify right side
    80,691.51x = 4,887,970,043.61
  5. Step 5: Solve for x
    x = 4,887,970,043.61/80,691.51
  6. Step 6: Final answer
    x = 60,576.01

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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.