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Finding the Fourth Proportional to 69,506.31, 104,259.87 and 19,586.82

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Solution

The fourth proportional to 69,506.31, 104,259.87 and 19,586.82 is: 29,380.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,506.31 : 104,259.87 = 19,586.82 : x
  2. Step 2: Convert to fraction form
    69,506.31/104,259.87 = 19,586.82/x
  3. Step 3: Cross multiply
    69,506.31x = 104,259.87 × 19,586.82
  4. Step 4: Simplify right side
    69,506.31x = 2,042,119,306.91
  5. Step 5: Solve for x
    x = 2,042,119,306.91/69,506.31
  6. Step 6: Final answer
    x = 29,380.34

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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.