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Finding the Fourth Proportional to 69,359.38, 104,038.41 and 21,974.34

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Solution

The fourth proportional to 69,359.38, 104,038.41 and 21,974.34 is: 32,961.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,359.38 : 104,038.41 = 21,974.34 : x
  2. Step 2: Convert to fraction form
    69,359.38/104,038.41 = 21,974.34/x
  3. Step 3: Cross multiply
    69,359.38x = 104,038.41 × 21,974.34
  4. Step 4: Simplify right side
    69,359.38x = 2,286,175,394.40
  5. Step 5: Solve for x
    x = 2,286,175,394.40/69,359.38
  6. Step 6: Final answer
    x = 32,961.30

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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.