Home / 83,388.39-115,076.05-45,147.96

Finding the Fourth Proportional to 83,388.39, 115,076.05 and 45,147.96

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Solution

The fourth proportional to 83,388.39, 115,076.05 and 45,147.96 is: 62,304.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,388.39 : 115,076.05 = 45,147.96 : x
  2. Step 2: Convert to fraction form
    83,388.39/115,076.05 = 45,147.96/x
  3. Step 3: Cross multiply
    83,388.39x = 115,076.05 × 45,147.96
  4. Step 4: Simplify right side
    83,388.39x = 5,195,448,902.36
  5. Step 5: Solve for x
    x = 5,195,448,902.36/83,388.39
  6. Step 6: Final answer
    x = 62,304.22

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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.