Home / 87,945.06-131,936.07-28,776.12

Finding the Fourth Proportional to 87,945.06, 131,936.07 and 28,776.12

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Solution

The fourth proportional to 87,945.06, 131,936.07 and 28,776.12 is: 43,170.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,945.06 : 131,936.07 = 28,776.12 : x
  2. Step 2: Convert to fraction form
    87,945.06/131,936.07 = 28,776.12/x
  3. Step 3: Cross multiply
    87,945.06x = 131,936.07 × 28,776.12
  4. Step 4: Simplify right side
    87,945.06x = 3,796,608,182.65
  5. Step 5: Solve for x
    x = 3,796,608,182.65/87,945.06
  6. Step 6: Final answer
    x = 43,170.23

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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.