Home / 66,930.38-100,363.26-38,857.49

Finding the Fourth Proportional to 66,930.38, 100,363.26 and 38,857.49

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Solution

The fourth proportional to 66,930.38, 100,363.26 and 38,857.49 is: 58,267.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,930.38 : 100,363.26 = 38,857.49 : x
  2. Step 2: Convert to fraction form
    66,930.38/100,363.26 = 38,857.49/x
  3. Step 3: Cross multiply
    66,930.38x = 100,363.26 × 38,857.49
  4. Step 4: Simplify right side
    66,930.38x = 3,899,864,371.82
  5. Step 5: Solve for x
    x = 3,899,864,371.82/66,930.38
  6. Step 6: Final answer
    x = 58,267.48

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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.