Home / 87,945.58-131,930.70-28,785.94

Finding the Fourth Proportional to 87,945.58, 131,930.70 and 28,785.94

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Solution

The fourth proportional to 87,945.58, 131,930.70 and 28,785.94 is: 43,182.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,945.58 : 131,930.70 = 28,785.94 : x
  2. Step 2: Convert to fraction form
    87,945.58/131,930.70 = 28,785.94/x
  3. Step 3: Cross multiply
    87,945.58x = 131,930.70 × 28,785.94
  4. Step 4: Simplify right side
    87,945.58x = 3,797,749,214.36
  5. Step 5: Solve for x
    x = 3,797,749,214.36/87,945.58
  6. Step 6: Final answer
    x = 43,182.95

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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.