Home / 87,537.72-131,334.66-31,339.68

Finding the Fourth Proportional to 87,537.72, 131,334.66 and 31,339.68

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Solution

The fourth proportional to 87,537.72, 131,334.66 and 31,339.68 is: 47,019.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,537.72 : 131,334.66 = 31,339.68 : x
  2. Step 2: Convert to fraction form
    87,537.72/131,334.66 = 31,339.68/x
  3. Step 3: Cross multiply
    87,537.72x = 131,334.66 × 31,339.68
  4. Step 4: Simplify right side
    87,537.72x = 4,115,986,217.31
  5. Step 5: Solve for x
    x = 4,115,986,217.31/87,537.72
  6. Step 6: Final answer
    x = 47,019.57

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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.