Home / 69,786.39-104,680.22-19,866.47

Finding the Fourth Proportional to 69,786.39, 104,680.22 and 19,866.47

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Solution

The fourth proportional to 69,786.39, 104,680.22 and 19,866.47 is: 29,799.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,786.39 : 104,680.22 = 19,866.47 : x
  2. Step 2: Convert to fraction form
    69,786.39/104,680.22 = 19,866.47/x
  3. Step 3: Cross multiply
    69,786.39x = 104,680.22 × 19,866.47
  4. Step 4: Simplify right side
    69,786.39x = 2,079,625,827.49
  5. Step 5: Solve for x
    x = 2,079,625,827.49/69,786.39
  6. Step 6: Final answer
    x = 29,799.88

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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.