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Finding the Fourth Proportional to 68,363.55, 102,544.52 and 21,616.29

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Solution

The fourth proportional to 68,363.55, 102,544.52 and 21,616.29 is: 32,424.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,363.55 : 102,544.52 = 21,616.29 : x
  2. Step 2: Convert to fraction form
    68,363.55/102,544.52 = 21,616.29/x
  3. Step 3: Cross multiply
    68,363.55x = 102,544.52 × 21,616.29
  4. Step 4: Simplify right side
    68,363.55x = 2,216,631,974.15
  5. Step 5: Solve for x
    x = 2,216,631,974.15/68,363.55
  6. Step 6: Final answer
    x = 32,424.18

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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.