Home / 83,696.04-115,520.62-47,906.80

Finding the Fourth Proportional to 83,696.04, 115,520.62 and 47,906.80

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Solution

The fourth proportional to 83,696.04, 115,520.62 and 47,906.80 is: 66,122.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,696.04 : 115,520.62 = 47,906.80 : x
  2. Step 2: Convert to fraction form
    83,696.04/115,520.62 = 47,906.80/x
  3. Step 3: Cross multiply
    83,696.04x = 115,520.62 × 47,906.80
  4. Step 4: Simplify right side
    83,696.04x = 5,534,223,238.22
  5. Step 5: Solve for x
    x = 5,534,223,238.22/83,696.04
  6. Step 6: Final answer
    x = 66,122.88

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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.