Home / 87,942.59-131,901.12-28,780.59

Finding the Fourth Proportional to 87,942.59, 131,901.12 and 28,780.59

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Solution

The fourth proportional to 87,942.59, 131,901.12 and 28,780.59 is: 43,166.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,942.59 : 131,901.12 = 28,780.59 : x
  2. Step 2: Convert to fraction form
    87,942.59/131,901.12 = 28,780.59/x
  3. Step 3: Cross multiply
    87,942.59x = 131,901.12 × 28,780.59
  4. Step 4: Simplify right side
    87,942.59x = 3,796,192,055.26
  5. Step 5: Solve for x
    x = 3,796,192,055.26/87,942.59
  6. Step 6: Final answer
    x = 43,166.71

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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.