Home / 87,786.40-131,610.48-40,992.16

Finding the Fourth Proportional to 87,786.40, 131,610.48 and 40,992.16

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Solution

The fourth proportional to 87,786.40, 131,610.48 and 40,992.16 is: 61,455.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,786.40 : 131,610.48 = 40,992.16 : x
  2. Step 2: Convert to fraction form
    87,786.40/131,610.48 = 40,992.16/x
  3. Step 3: Cross multiply
    87,786.40x = 131,610.48 × 40,992.16
  4. Step 4: Simplify right side
    87,786.40x = 5,394,997,853.84
  5. Step 5: Solve for x
    x = 5,394,997,853.84/87,786.40
  6. Step 6: Final answer
    x = 61,455.96

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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.