Home / 67,283.78-100,865.37-27,815.66

Finding the Fourth Proportional to 67,283.78, 100,865.37 and 27,815.66

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Solution

The fourth proportional to 67,283.78, 100,865.37 and 27,815.66 is: 41,698.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,283.78 : 100,865.37 = 27,815.66 : x
  2. Step 2: Convert to fraction form
    67,283.78/100,865.37 = 27,815.66/x
  3. Step 3: Cross multiply
    67,283.78x = 100,865.37 × 27,815.66
  4. Step 4: Simplify right side
    67,283.78x = 2,805,636,837.69
  5. Step 5: Solve for x
    x = 2,805,636,837.69/67,283.78
  6. Step 6: Final answer
    x = 41,698.56

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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.