Home / 87,743.97-121,086.70-49,511.64

Finding the Fourth Proportional to 87,743.97, 121,086.70 and 49,511.64

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Solution

The fourth proportional to 87,743.97, 121,086.70 and 49,511.64 is: 68,326.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,743.97 : 121,086.70 = 49,511.64 : x
  2. Step 2: Convert to fraction form
    87,743.97/121,086.70 = 49,511.64/x
  3. Step 3: Cross multiply
    87,743.97x = 121,086.70 × 49,511.64
  4. Step 4: Simplify right side
    87,743.97x = 5,995,201,099.19
  5. Step 5: Solve for x
    x = 5,995,201,099.19/87,743.97
  6. Step 6: Final answer
    x = 68,326.08

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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.