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Finding the Fourth Proportional to 69,107.81, 95,371.85 and 38,895.09

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Solution

The fourth proportional to 69,107.81, 95,371.85 and 38,895.09 is: 53,676.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,107.81 : 95,371.85 = 38,895.09 : x
  2. Step 2: Convert to fraction form
    69,107.81/95,371.85 = 38,895.09/x
  3. Step 3: Cross multiply
    69,107.81x = 95,371.85 × 38,895.09
  4. Step 4: Simplify right side
    69,107.81x = 3,709,497,018.66
  5. Step 5: Solve for x
    x = 3,709,497,018.66/69,107.81
  6. Step 6: Final answer
    x = 53,676.95

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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.