Home / 87,392.96-131,076.48-31,976

Finding the Fourth Proportional to 87,392.96, 131,076.48 and 31,976

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Solution

The fourth proportional to 87,392.96, 131,076.48 and 31,976 is: 47,959.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,392.96 : 131,076.48 = 31,976 : x
  2. Step 2: Convert to fraction form
    87,392.96/131,076.48 = 31,976/x
  3. Step 3: Cross multiply
    87,392.96x = 131,076.48 × 31,976
  4. Step 4: Simplify right side
    87,392.96x = 4,191,301,524.48
  5. Step 5: Solve for x
    x = 4,191,301,524.48/87,392.96
  6. Step 6: Final answer
    x = 47,959.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.