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Finding the Fourth Proportional to 69,489.82, 104,225.50 and 19,573.84

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Solution

The fourth proportional to 69,489.82, 104,225.50 and 19,573.84 is: 29,358.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,489.82 : 104,225.50 = 19,573.84 : x
  2. Step 2: Convert to fraction form
    69,489.82/104,225.50 = 19,573.84/x
  3. Step 3: Cross multiply
    69,489.82x = 104,225.50 × 19,573.84
  4. Step 4: Simplify right side
    69,489.82x = 2,040,093,260.92
  5. Step 5: Solve for x
    x = 2,040,093,260.92/69,489.82
  6. Step 6: Final answer
    x = 29,358.16

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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.