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Finding the Fourth Proportional to 69,719.76, 96,213.87 and 37,888.65

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Solution

The fourth proportional to 69,719.76, 96,213.87 and 37,888.65 is: 52,286.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,719.76 : 96,213.87 = 37,888.65 : x
  2. Step 2: Convert to fraction form
    69,719.76/96,213.87 = 37,888.65/x
  3. Step 3: Cross multiply
    69,719.76x = 96,213.87 × 37,888.65
  4. Step 4: Simplify right side
    69,719.76x = 3,645,413,645.58
  5. Step 5: Solve for x
    x = 3,645,413,645.58/69,719.76
  6. Step 6: Final answer
    x = 52,286.66

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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.