Home / 80,357.18-110,833.97-57,719.43

Finding the Fourth Proportional to 80,357.18, 110,833.97 and 57,719.43

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Solution

The fourth proportional to 80,357.18, 110,833.97 and 57,719.43 is: 79,610.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,357.18 : 110,833.97 = 57,719.43 : x
  2. Step 2: Convert to fraction form
    80,357.18/110,833.97 = 57,719.43/x
  3. Step 3: Cross multiply
    80,357.18x = 110,833.97 × 57,719.43
  4. Step 4: Simplify right side
    80,357.18x = 6,397,273,284.44
  5. Step 5: Solve for x
    x = 6,397,273,284.44/80,357.18
  6. Step 6: Final answer
    x = 79,610.48

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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.