Home / 87,947.40-131,945.72-28,824.59

Finding the Fourth Proportional to 87,947.40, 131,945.72 and 28,824.59

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Solution

The fourth proportional to 87,947.40, 131,945.72 and 28,824.59 is: 43,244.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,947.40 : 131,945.72 = 28,824.59 : x
  2. Step 2: Convert to fraction form
    87,947.40/131,945.72 = 28,824.59/x
  3. Step 3: Cross multiply
    87,947.40x = 131,945.72 × 28,824.59
  4. Step 4: Simplify right side
    87,947.40x = 3,803,280,477.40
  5. Step 5: Solve for x
    x = 3,803,280,477.40/87,947.40
  6. Step 6: Final answer
    x = 43,244.95

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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.