Home / 87,722.92-121,053.04-49,481.34

Finding the Fourth Proportional to 87,722.92, 121,053.04 and 49,481.34

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Solution

The fourth proportional to 87,722.92, 121,053.04 and 49,481.34 is: 68,281.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,722.92 : 121,053.04 = 49,481.34 : x
  2. Step 2: Convert to fraction form
    87,722.92/121,053.04 = 49,481.34/x
  3. Step 3: Cross multiply
    87,722.92x = 121,053.04 × 49,481.34
  4. Step 4: Simplify right side
    87,722.92x = 5,989,866,630.27
  5. Step 5: Solve for x
    x = 5,989,866,630.27/87,722.92
  6. Step 6: Final answer
    x = 68,281.66

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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.