Home / 87,927.30-121,394.70-67,745.88

Finding the Fourth Proportional to 87,927.30, 121,394.70 and 67,745.88

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Solution

The fourth proportional to 87,927.30, 121,394.70 and 67,745.88 is: 93,531.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,927.30 : 121,394.70 = 67,745.88 : x
  2. Step 2: Convert to fraction form
    87,927.30/121,394.70 = 67,745.88/x
  3. Step 3: Cross multiply
    87,927.30x = 121,394.70 × 67,745.88
  4. Step 4: Simplify right side
    87,927.30x = 8,223,990,778.84
  5. Step 5: Solve for x
    x = 8,223,990,778.84/87,927.30
  6. Step 6: Final answer
    x = 93,531.71

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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.