Home / 87,680.13-121,010.43-49,447.54

Finding the Fourth Proportional to 87,680.13, 121,010.43 and 49,447.54

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Solution

The fourth proportional to 87,680.13, 121,010.43 and 49,447.54 is: 68,244.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,680.13 : 121,010.43 = 49,447.54 : x
  2. Step 2: Convert to fraction form
    87,680.13/121,010.43 = 49,447.54/x
  3. Step 3: Cross multiply
    87,680.13x = 121,010.43 × 49,447.54
  4. Step 4: Simplify right side
    87,680.13x = 5,983,668,077.84
  5. Step 5: Solve for x
    x = 5,983,668,077.84/87,680.13
  6. Step 6: Final answer
    x = 68,244.29

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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.