Home / 87,917.31-131,974.39-58,392.81

Finding the Fourth Proportional to 87,917.31, 131,974.39 and 58,392.81

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Solution

The fourth proportional to 87,917.31, 131,974.39 and 58,392.81 is: 87,654.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,917.31 : 131,974.39 = 58,392.81 : x
  2. Step 2: Convert to fraction form
    87,917.31/131,974.39 = 58,392.81/x
  3. Step 3: Cross multiply
    87,917.31x = 131,974.39 × 58,392.81
  4. Step 4: Simplify right side
    87,917.31x = 7,706,355,480.14
  5. Step 5: Solve for x
    x = 7,706,355,480.14/87,917.31
  6. Step 6: Final answer
    x = 87,654.59

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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.