Home / 87,376.50-131,092.59-31,215.54

Finding the Fourth Proportional to 87,376.50, 131,092.59 and 31,215.54

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Solution

The fourth proportional to 87,376.50, 131,092.59 and 31,215.54 is: 46,833.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,376.50 : 131,092.59 = 31,215.54 : x
  2. Step 2: Convert to fraction form
    87,376.50/131,092.59 = 31,215.54/x
  3. Step 3: Cross multiply
    87,376.50x = 131,092.59 × 31,215.54
  4. Step 4: Simplify right side
    87,376.50x = 4,092,125,986.85
  5. Step 5: Solve for x
    x = 4,092,125,986.85/87,376.50
  6. Step 6: Final answer
    x = 46,833.26

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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.