Home / 86,481.92-129,659.70-58,331.96

Finding the Fourth Proportional to 86,481.92, 129,659.70 and 58,331.96

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Solution

The fourth proportional to 86,481.92, 129,659.70 and 58,331.96 is: 87,455.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,481.92 : 129,659.70 = 58,331.96 : x
  2. Step 2: Convert to fraction form
    86,481.92/129,659.70 = 58,331.96/x
  3. Step 3: Cross multiply
    86,481.92x = 129,659.70 × 58,331.96
  4. Step 4: Simplify right side
    86,481.92x = 7,563,304,434.01
  5. Step 5: Solve for x
    x = 7,563,304,434.01/86,481.92
  6. Step 6: Final answer
    x = 87,455.33

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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.