Home / 51,691.26-71,340.54-31,543.86

Finding the Fourth Proportional to 51,691.26, 71,340.54 and 31,543.86

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Solution

The fourth proportional to 51,691.26, 71,340.54 and 31,543.86 is: 43,534.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,691.26 : 71,340.54 = 31,543.86 : x
  2. Step 2: Convert to fraction form
    51,691.26/71,340.54 = 31,543.86/x
  3. Step 3: Cross multiply
    51,691.26x = 71,340.54 × 31,543.86
  4. Step 4: Simplify right side
    51,691.26x = 2,250,356,006.08
  5. Step 5: Solve for x
    x = 2,250,356,006.08/51,691.26
  6. Step 6: Final answer
    x = 43,534.56

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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.