Home / 87,959.40-121,382.02-49,713.86

Finding the Fourth Proportional to 87,959.40, 121,382.02 and 49,713.86

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Solution

The fourth proportional to 87,959.40, 121,382.02 and 49,713.86 is: 68,604.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,959.40 : 121,382.02 = 49,713.86 : x
  2. Step 2: Convert to fraction form
    87,959.40/121,382.02 = 49,713.86/x
  3. Step 3: Cross multiply
    87,959.40x = 121,382.02 × 49,713.86
  4. Step 4: Simplify right side
    87,959.40x = 6,034,368,633.19
  5. Step 5: Solve for x
    x = 6,034,368,633.19/87,959.40
  6. Step 6: Final answer
    x = 68,604.02

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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.