Home / 87,886.41-121,290.69-49,652.97

Finding the Fourth Proportional to 87,886.41, 121,290.69 and 49,652.97

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Solution

The fourth proportional to 87,886.41, 121,290.69 and 49,652.97 is: 68,525.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,886.41 : 121,290.69 = 49,652.97 : x
  2. Step 2: Convert to fraction form
    87,886.41/121,290.69 = 49,652.97/x
  3. Step 3: Cross multiply
    87,886.41x = 121,290.69 × 49,652.97
  4. Step 4: Simplify right side
    87,886.41x = 6,022,442,991.85
  5. Step 5: Solve for x
    x = 6,022,442,991.85/87,886.41
  6. Step 6: Final answer
    x = 68,525.30

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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.