Home / 87,963.17-121,388.73-47,676.60

Finding the Fourth Proportional to 87,963.17, 121,388.73 and 47,676.60

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Solution

The fourth proportional to 87,963.17, 121,388.73 and 47,676.60 is: 65,793.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,963.17 : 121,388.73 = 47,676.60 : x
  2. Step 2: Convert to fraction form
    87,963.17/121,388.73 = 47,676.60/x
  3. Step 3: Cross multiply
    87,963.17x = 121,388.73 × 47,676.60
  4. Step 4: Simplify right side
    87,963.17x = 5,787,401,745.93
  5. Step 5: Solve for x
    x = 5,787,401,745.93/87,963.17
  6. Step 6: Final answer
    x = 65,793.47

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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.