Home / 87,882.56-121,244.16-50,136.80

Finding the Fourth Proportional to 87,882.56, 121,244.16 and 50,136.80

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Solution

The fourth proportional to 87,882.56, 121,244.16 and 50,136.80 is: 69,169.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,882.56 : 121,244.16 = 50,136.80 : x
  2. Step 2: Convert to fraction form
    87,882.56/121,244.16 = 50,136.80/x
  3. Step 3: Cross multiply
    87,882.56x = 121,244.16 × 50,136.80
  4. Step 4: Simplify right side
    87,882.56x = 6,078,794,201.09
  5. Step 5: Solve for x
    x = 6,078,794,201.09/87,882.56
  6. Step 6: Final answer
    x = 69,169.52

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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.