Home / 87,719.58-121,054.26-49,480.92

Finding the Fourth Proportional to 87,719.58, 121,054.26 and 49,480.92

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Solution

The fourth proportional to 87,719.58, 121,054.26 and 49,480.92 is: 68,284.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,719.58 : 121,054.26 = 49,480.92 : x
  2. Step 2: Convert to fraction form
    87,719.58/121,054.26 = 49,480.92/x
  3. Step 3: Cross multiply
    87,719.58x = 121,054.26 × 49,480.92
  4. Step 4: Simplify right side
    87,719.58x = 5,989,876,154.72
  5. Step 5: Solve for x
    x = 5,989,876,154.72/87,719.58
  6. Step 6: Final answer
    x = 68,284.37

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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.