Home / 87,018.21-130,463.48-27,819.81

Finding the Fourth Proportional to 87,018.21, 130,463.48 and 27,819.81

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Solution

The fourth proportional to 87,018.21, 130,463.48 and 27,819.81 is: 41,709.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,018.21 : 130,463.48 = 27,819.81 : x
  2. Step 2: Convert to fraction form
    87,018.21/130,463.48 = 27,819.81/x
  3. Step 3: Cross multiply
    87,018.21x = 130,463.48 × 27,819.81
  4. Step 4: Simplify right side
    87,018.21x = 3,629,469,086.44
  5. Step 5: Solve for x
    x = 3,629,469,086.44/87,018.21
  6. Step 6: Final answer
    x = 41,709.31

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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.