Home / 87,668.31-120,976.19-49,429.22

Finding the Fourth Proportional to 87,668.31, 120,976.19 and 49,429.22

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Solution

The fourth proportional to 87,668.31, 120,976.19 and 49,429.22 is: 68,208.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,668.31 : 120,976.19 = 49,429.22 : x
  2. Step 2: Convert to fraction form
    87,668.31/120,976.19 = 49,429.22/x
  3. Step 3: Cross multiply
    87,668.31x = 120,976.19 × 49,429.22
  4. Step 4: Simplify right side
    87,668.31x = 5,979,757,858.24
  5. Step 5: Solve for x
    x = 5,979,757,858.24/87,668.31
  6. Step 6: Final answer
    x = 68,208.89

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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.