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Finding the Fourth Proportional to 69,162, 95,450.04 and 39,354

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Solution

The fourth proportional to 69,162, 95,450.04 and 39,354 is: 54,312.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,162 : 95,450.04 = 39,354 : x
  2. Step 2: Convert to fraction form
    69,162/95,450.04 = 39,354/x
  3. Step 3: Cross multiply
    69,162x = 95,450.04 × 39,354
  4. Step 4: Simplify right side
    69,162x = 3,756,340,874.16
  5. Step 5: Solve for x
    x = 3,756,340,874.16/69,162
  6. Step 6: Final answer
    x = 54,312.21

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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.