Home / 87,628.50-131,414.91-28,450.50

Finding the Fourth Proportional to 87,628.50, 131,414.91 and 28,450.50

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Solution

The fourth proportional to 87,628.50, 131,414.91 and 28,450.50 is: 42,666.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,628.50 : 131,414.91 = 28,450.50 : x
  2. Step 2: Convert to fraction form
    87,628.50/131,414.91 = 28,450.50/x
  3. Step 3: Cross multiply
    87,628.50x = 131,414.91 × 28,450.50
  4. Step 4: Simplify right side
    87,628.50x = 3,738,819,896.96
  5. Step 5: Solve for x
    x = 3,738,819,896.96/87,628.50
  6. Step 6: Final answer
    x = 42,666.71

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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.