Home / 87,865.29-121,233.11-49,625.60

Finding the Fourth Proportional to 87,865.29, 121,233.11 and 49,625.60

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Solution

The fourth proportional to 87,865.29, 121,233.11 and 49,625.60 is: 68,471.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,865.29 : 121,233.11 = 49,625.60 : x
  2. Step 2: Convert to fraction form
    87,865.29/121,233.11 = 49,625.60/x
  3. Step 3: Cross multiply
    87,865.29x = 121,233.11 × 49,625.60
  4. Step 4: Simplify right side
    87,865.29x = 6,016,264,969.32
  5. Step 5: Solve for x
    x = 6,016,264,969.32/87,865.29
  6. Step 6: Final answer
    x = 68,471.46

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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.