Home / 79,976.20-119,712.73-54,869.44

Finding the Fourth Proportional to 79,976.20, 119,712.73 and 54,869.44

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Solution

The fourth proportional to 79,976.20, 119,712.73 and 54,869.44 is: 82,131.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,976.20 : 119,712.73 = 54,869.44 : x
  2. Step 2: Convert to fraction form
    79,976.20/119,712.73 = 54,869.44/x
  3. Step 3: Cross multiply
    79,976.20x = 119,712.73 × 54,869.44
  4. Step 4: Simplify right side
    79,976.20x = 6,568,570,455.97
  5. Step 5: Solve for x
    x = 6,568,570,455.97/79,976.20
  6. Step 6: Final answer
    x = 82,131.56

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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.