Home / 87,412.81-131,119.22-57,823.73

Finding the Fourth Proportional to 87,412.81, 131,119.22 and 57,823.73

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Solution

The fourth proportional to 87,412.81, 131,119.22 and 57,823.73 is: 86,735.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,412.81 : 131,119.22 = 57,823.73 : x
  2. Step 2: Convert to fraction form
    87,412.81/131,119.22 = 57,823.73/x
  3. Step 3: Cross multiply
    87,412.81x = 131,119.22 × 57,823.73
  4. Step 4: Simplify right side
    87,412.81x = 7,581,802,375.09
  5. Step 5: Solve for x
    x = 7,581,802,375.09/87,412.81
  6. Step 6: Final answer
    x = 86,735.60

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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.