Home / 87,986.88-121,405.23-52,163.82

Finding the Fourth Proportional to 87,986.88, 121,405.23 and 52,163.82

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Solution

The fourth proportional to 87,986.88, 121,405.23 and 52,163.82 is: 71,976.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,986.88 : 121,405.23 = 52,163.82 : x
  2. Step 2: Convert to fraction form
    87,986.88/121,405.23 = 52,163.82/x
  3. Step 3: Cross multiply
    87,986.88x = 121,405.23 × 52,163.82
  4. Step 4: Simplify right side
    87,986.88x = 6,332,960,564.78
  5. Step 5: Solve for x
    x = 6,332,960,564.78/87,986.88
  6. Step 6: Final answer
    x = 71,976.19

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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.