Home / 87,963.08-121,388.57-47,676.42

Finding the Fourth Proportional to 87,963.08, 121,388.57 and 47,676.42

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Solution

The fourth proportional to 87,963.08, 121,388.57 and 47,676.42 is: 65,793.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,963.08 : 121,388.57 = 47,676.42 : x
  2. Step 2: Convert to fraction form
    87,963.08/121,388.57 = 47,676.42/x
  3. Step 3: Cross multiply
    87,963.08x = 121,388.57 × 47,676.42
  4. Step 4: Simplify right side
    87,963.08x = 5,787,372,208.14
  5. Step 5: Solve for x
    x = 5,787,372,208.14/87,963.08
  6. Step 6: Final answer
    x = 65,793.20

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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.