Home / 87,591.71-120,876.57-47,305.49

Finding the Fourth Proportional to 87,591.71, 120,876.57 and 47,305.49

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Solution

The fourth proportional to 87,591.71, 120,876.57 and 47,305.49 is: 65,281.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,591.71 : 120,876.57 = 47,305.49 : x
  2. Step 2: Convert to fraction form
    87,591.71/120,876.57 = 47,305.49/x
  3. Step 3: Cross multiply
    87,591.71x = 120,876.57 × 47,305.49
  4. Step 4: Simplify right side
    87,591.71x = 5,718,124,768.99
  5. Step 5: Solve for x
    x = 5,718,124,768.99/87,591.71
  6. Step 6: Final answer
    x = 65,281.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.