Home / 87,878.44-131,790.36-31,711.26

Finding the Fourth Proportional to 87,878.44, 131,790.36 and 31,711.26

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Solution

The fourth proportional to 87,878.44, 131,790.36 and 31,711.26 is: 47,557.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,878.44 : 131,790.36 = 31,711.26 : x
  2. Step 2: Convert to fraction form
    87,878.44/131,790.36 = 31,711.26/x
  3. Step 3: Cross multiply
    87,878.44x = 131,790.36 × 31,711.26
  4. Step 4: Simplify right side
    87,878.44x = 4,179,238,371.45
  5. Step 5: Solve for x
    x = 4,179,238,371.45/87,878.44
  6. Step 6: Final answer
    x = 47,557.04

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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.