Home / 83,453.18-115,144.79-49,469.63

Finding the Fourth Proportional to 83,453.18, 115,144.79 and 49,469.63

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Solution

The fourth proportional to 83,453.18, 115,144.79 and 49,469.63 is: 68,255.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,453.18 : 115,144.79 = 49,469.63 : x
  2. Step 2: Convert to fraction form
    83,453.18/115,144.79 = 49,469.63/x
  3. Step 3: Cross multiply
    83,453.18x = 115,144.79 × 49,469.63
  4. Step 4: Simplify right side
    83,453.18x = 5,696,169,334.66
  5. Step 5: Solve for x
    x = 5,696,169,334.66/83,453.18
  6. Step 6: Final answer
    x = 68,255.87

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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.