Home / 87,876.43-131,787.37-31,709.25

Finding the Fourth Proportional to 87,876.43, 131,787.37 and 31,709.25

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Solution

The fourth proportional to 87,876.43, 131,787.37 and 31,709.25 is: 47,554.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,876.43 : 131,787.37 = 31,709.25 : x
  2. Step 2: Convert to fraction form
    87,876.43/131,787.37 = 31,709.25/x
  3. Step 3: Cross multiply
    87,876.43x = 131,787.37 × 31,709.25
  4. Step 4: Simplify right side
    87,876.43x = 4,178,878,662.17
  5. Step 5: Solve for x
    x = 4,178,878,662.17/87,876.43
  6. Step 6: Final answer
    x = 47,554.03

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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.