Home / 87,983.36-131,947.26-28,805.42

Finding the Fourth Proportional to 87,983.36, 131,947.26 and 28,805.42

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Solution

The fourth proportional to 87,983.36, 131,947.26 and 28,805.42 is: 43,199.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,983.36 : 131,947.26 = 28,805.42 : x
  2. Step 2: Convert to fraction form
    87,983.36/131,947.26 = 28,805.42/x
  3. Step 3: Cross multiply
    87,983.36x = 131,947.26 × 28,805.42
  4. Step 4: Simplify right side
    87,983.36x = 3,800,796,242.15
  5. Step 5: Solve for x
    x = 3,800,796,242.15/87,983.36
  6. Step 6: Final answer
    x = 43,199.03

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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.