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Finding the Fourth Proportional to 69,868.62, 104,800.35 and 30,425.82

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Solution

The fourth proportional to 69,868.62, 104,800.35 and 30,425.82 is: 45,637.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,868.62 : 104,800.35 = 30,425.82 : x
  2. Step 2: Convert to fraction form
    69,868.62/104,800.35 = 30,425.82/x
  3. Step 3: Cross multiply
    69,868.62x = 104,800.35 × 30,425.82
  4. Step 4: Simplify right side
    69,868.62x = 3,188,636,585.04
  5. Step 5: Solve for x
    x = 3,188,636,585.04/69,868.62
  6. Step 6: Final answer
    x = 45,637.61

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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.