Home / 87,491.29-131,257.83-28,327.03

Finding the Fourth Proportional to 87,491.29, 131,257.83 and 28,327.03

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Solution

The fourth proportional to 87,491.29, 131,257.83 and 28,327.03 is: 42,497.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,491.29 : 131,257.83 = 28,327.03 : x
  2. Step 2: Convert to fraction form
    87,491.29/131,257.83 = 28,327.03/x
  3. Step 3: Cross multiply
    87,491.29x = 131,257.83 × 28,327.03
  4. Step 4: Simplify right side
    87,491.29x = 3,718,144,488.14
  5. Step 5: Solve for x
    x = 3,718,144,488.14/87,491.29
  6. Step 6: Final answer
    x = 42,497.31

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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.