Home / 87,834.66-121,212.84-49,073.70

Finding the Fourth Proportional to 87,834.66, 121,212.84 and 49,073.70

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Solution

The fourth proportional to 87,834.66, 121,212.84 and 49,073.70 is: 67,722.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,834.66 : 121,212.84 = 49,073.70 : x
  2. Step 2: Convert to fraction form
    87,834.66/121,212.84 = 49,073.70/x
  3. Step 3: Cross multiply
    87,834.66x = 121,212.84 × 49,073.70
  4. Step 4: Simplify right side
    87,834.66x = 5,948,362,546.31
  5. Step 5: Solve for x
    x = 5,948,362,546.31/87,834.66
  6. Step 6: Final answer
    x = 67,722.27

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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.