Home / 87,569.25-120,845.70-49,843.50

Finding the Fourth Proportional to 87,569.25, 120,845.70 and 49,843.50

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Solution

The fourth proportional to 87,569.25, 120,845.70 and 49,843.50 is: 68,784.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,569.25 : 120,845.70 = 49,843.50 : x
  2. Step 2: Convert to fraction form
    87,569.25/120,845.70 = 49,843.50/x
  3. Step 3: Cross multiply
    87,569.25x = 120,845.70 × 49,843.50
  4. Step 4: Simplify right side
    87,569.25x = 6,023,372,647.95
  5. Step 5: Solve for x
    x = 6,023,372,647.95/87,569.25
  6. Step 6: Final answer
    x = 68,784.11

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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.