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Finding the Fourth Proportional to 68,550.84, 102,804.39 and 21,792.78

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Solution

The fourth proportional to 68,550.84, 102,804.39 and 21,792.78 is: 32,682.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,550.84 : 102,804.39 = 21,792.78 : x
  2. Step 2: Convert to fraction form
    68,550.84/102,804.39 = 21,792.78/x
  3. Step 3: Cross multiply
    68,550.84x = 102,804.39 × 21,792.78
  4. Step 4: Simplify right side
    68,550.84x = 2,240,393,454.30
  5. Step 5: Solve for x
    x = 2,240,393,454.30/68,550.84
  6. Step 6: Final answer
    x = 32,682.22

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1.5x scale

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.