Home / 91,736.76-126,542.96-57,691.24

Finding the Fourth Proportional to 91,736.76, 126,542.96 and 57,691.24

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Solution

The fourth proportional to 91,736.76, 126,542.96 and 57,691.24 is: 79,580.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,736.76 : 126,542.96 = 57,691.24 : x
  2. Step 2: Convert to fraction form
    91,736.76/126,542.96 = 57,691.24/x
  3. Step 3: Cross multiply
    91,736.76x = 126,542.96 × 57,691.24
  4. Step 4: Simplify right side
    91,736.76x = 7,300,420,761.26
  5. Step 5: Solve for x
    x = 7,300,420,761.26/91,736.76
  6. Step 6: Final answer
    x = 79,580.10

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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.