Home / 87,722.61-121,049.85-51,906.39

Finding the Fourth Proportional to 87,722.61, 121,049.85 and 51,906.39

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Solution

The fourth proportional to 87,722.61, 121,049.85 and 51,906.39 is: 71,626.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,722.61 : 121,049.85 = 51,906.39 : x
  2. Step 2: Convert to fraction form
    87,722.61/121,049.85 = 51,906.39/x
  3. Step 3: Cross multiply
    87,722.61x = 121,049.85 × 51,906.39
  4. Step 4: Simplify right side
    87,722.61x = 6,283,260,723.54
  5. Step 5: Solve for x
    x = 6,283,260,723.54/87,722.61
  6. Step 6: Final answer
    x = 71,626.47

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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.