Home / 91,696.32-137,556.72-36,279.36

Finding the Fourth Proportional to 91,696.32, 137,556.72 and 36,279.36

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Solution

The fourth proportional to 91,696.32, 137,556.72 and 36,279.36 is: 54,423.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,696.32 : 137,556.72 = 36,279.36 : x
  2. Step 2: Convert to fraction form
    91,696.32/137,556.72 = 36,279.36/x
  3. Step 3: Cross multiply
    91,696.32x = 137,556.72 × 36,279.36
  4. Step 4: Simplify right side
    91,696.32x = 4,990,469,765.30
  5. Step 5: Solve for x
    x = 4,990,469,765.30/91,696.32
  6. Step 6: Final answer
    x = 54,423.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.