Home / 87,519.04-120,787.78-49,286.05

Finding the Fourth Proportional to 87,519.04, 120,787.78 and 49,286.05

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Solution

The fourth proportional to 87,519.04, 120,787.78 and 49,286.05 is: 68,021.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,519.04 : 120,787.78 = 49,286.05 : x
  2. Step 2: Convert to fraction form
    87,519.04/120,787.78 = 49,286.05/x
  3. Step 3: Cross multiply
    87,519.04x = 120,787.78 × 49,286.05
  4. Step 4: Simplify right side
    87,519.04x = 5,953,152,564.47
  5. Step 5: Solve for x
    x = 5,953,152,564.47/87,519.04
  6. Step 6: Final answer
    x = 68,021.23

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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.