Home / 87,824.51-131,757.72-28,660.29

Finding the Fourth Proportional to 87,824.51, 131,757.72 and 28,660.29

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Solution

The fourth proportional to 87,824.51, 131,757.72 and 28,660.29 is: 42,997.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,824.51 : 131,757.72 = 28,660.29 : x
  2. Step 2: Convert to fraction form
    87,824.51/131,757.72 = 28,660.29/x
  3. Step 3: Cross multiply
    87,824.51x = 131,757.72 × 28,660.29
  4. Step 4: Simplify right side
    87,824.51x = 3,776,214,464.94
  5. Step 5: Solve for x
    x = 3,776,214,464.94/87,824.51
  6. Step 6: Final answer
    x = 42,997.27

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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.