Home / 83,494.46-115,239.74-76,769.43

Finding the Fourth Proportional to 83,494.46, 115,239.74 and 76,769.43

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Solution

The fourth proportional to 83,494.46, 115,239.74 and 76,769.43 is: 105,957.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,494.46 : 115,239.74 = 76,769.43 : x
  2. Step 2: Convert to fraction form
    83,494.46/115,239.74 = 76,769.43/x
  3. Step 3: Cross multiply
    83,494.46x = 115,239.74 × 76,769.43
  4. Step 4: Simplify right side
    83,494.46x = 8,846,888,769.30
  5. Step 5: Solve for x
    x = 8,846,888,769.30/83,494.46
  6. Step 6: Final answer
    x = 105,957.80

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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.