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Finding the Fourth Proportional to 103,623.70, 155,435.55 and 33,553.30

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Solution

The fourth proportional to 103,623.70, 155,435.55 and 33,553.30 is: 50,329.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,623.70 : 155,435.55 = 33,553.30 : x
  2. Step 2: Convert to fraction form
    103,623.70/155,435.55 = 33,553.30/x
  3. Step 3: Cross multiply
    103,623.70x = 155,435.55 × 33,553.30
  4. Step 4: Simplify right side
    103,623.70x = 5,215,375,639.82
  5. Step 5: Solve for x
    x = 5,215,375,639.82/103,623.70
  6. Step 6: Final answer
    x = 50,329.95

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.