Home / 87,736.80-121,076.40-47,450.61

Finding the Fourth Proportional to 87,736.80, 121,076.40 and 47,450.61

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Solution

The fourth proportional to 87,736.80, 121,076.40 and 47,450.61 is: 65,481.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,736.80 : 121,076.40 = 47,450.61 : x
  2. Step 2: Convert to fraction form
    87,736.80/121,076.40 = 47,450.61/x
  3. Step 3: Cross multiply
    87,736.80x = 121,076.40 × 47,450.61
  4. Step 4: Simplify right side
    87,736.80x = 5,745,149,036.60
  5. Step 5: Solve for x
    x = 5,745,149,036.60/87,736.80
  6. Step 6: Final answer
    x = 65,481.63

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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.