Home / 87,943.11-131,912.84-21,383.59

Finding the Fourth Proportional to 87,943.11, 131,912.84 and 21,383.59

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Solution

The fourth proportional to 87,943.11, 131,912.84 and 21,383.59 is: 32,074.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,943.11 : 131,912.84 = 21,383.59 : x
  2. Step 2: Convert to fraction form
    87,943.11/131,912.84 = 21,383.59/x
  3. Step 3: Cross multiply
    87,943.11x = 131,912.84 × 21,383.59
  4. Step 4: Simplify right side
    87,943.11x = 2,820,769,319.81
  5. Step 5: Solve for x
    x = 2,820,769,319.81/87,943.11
  6. Step 6: Final answer
    x = 32,074.93

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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.