Home / 87,824.45-131,757.63-28,660.22

Finding the Fourth Proportional to 87,824.45, 131,757.63 and 28,660.22

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Solution

The fourth proportional to 87,824.45, 131,757.63 and 28,660.22 is: 42,997.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,824.45 : 131,757.63 = 28,660.22 : x
  2. Step 2: Convert to fraction form
    87,824.45/131,757.63 = 28,660.22/x
  3. Step 3: Cross multiply
    87,824.45x = 131,757.63 × 28,660.22
  4. Step 4: Simplify right side
    87,824.45x = 3,776,202,991.87
  5. Step 5: Solve for x
    x = 3,776,202,991.87/87,824.45
  6. Step 6: Final answer
    x = 42,997.17

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1.5x scale

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.