Home / 87,719.04-121,049.28-50,005.44

Finding the Fourth Proportional to 87,719.04, 121,049.28 and 50,005.44

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Solution

The fourth proportional to 87,719.04, 121,049.28 and 50,005.44 is: 69,005.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,719.04 : 121,049.28 = 50,005.44 : x
  2. Step 2: Convert to fraction form
    87,719.04/121,049.28 = 50,005.44/x
  3. Step 3: Cross multiply
    87,719.04x = 121,049.28 × 50,005.44
  4. Step 4: Simplify right side
    87,719.04x = 6,053,122,508.08
  5. Step 5: Solve for x
    x = 6,053,122,508.08/87,719.04
  6. Step 6: Final answer
    x = 69,005.80

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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.