Home / 87,571.25-120,848.46-49,845.50

Finding the Fourth Proportional to 87,571.25, 120,848.46 and 49,845.50

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Solution

The fourth proportional to 87,571.25, 120,848.46 and 49,845.50 is: 68,786.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,571.25 : 120,848.46 = 49,845.50 : x
  2. Step 2: Convert to fraction form
    87,571.25/120,848.46 = 49,845.50/x
  3. Step 3: Cross multiply
    87,571.25x = 120,848.46 × 49,845.50
  4. Step 4: Simplify right side
    87,571.25x = 6,023,751,912.93
  5. Step 5: Solve for x
    x = 6,023,751,912.93/87,571.25
  6. Step 6: Final answer
    x = 68,786.87

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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.