Home / 87,591.75-120,876.62-47,847.75

Finding the Fourth Proportional to 87,591.75, 120,876.62 and 47,847.75

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Solution

The fourth proportional to 87,591.75, 120,876.62 and 47,847.75 is: 66,029.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,591.75 : 120,876.62 = 47,847.75 : x
  2. Step 2: Convert to fraction form
    87,591.75/120,876.62 = 47,847.75/x
  3. Step 3: Cross multiply
    87,591.75x = 120,876.62 × 47,847.75
  4. Step 4: Simplify right side
    87,591.75x = 5,783,674,055.37
  5. Step 5: Solve for x
    x = 5,783,674,055.37/87,591.75
  6. Step 6: Final answer
    x = 66,029.90

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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.