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Finding the Fourth Proportional to 45,605.96, 68,404.13 and 21,584.51

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Solution

The fourth proportional to 45,605.96, 68,404.13 and 21,584.51 is: 32,374.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,605.96 : 68,404.13 = 21,584.51 : x
  2. Step 2: Convert to fraction form
    45,605.96/68,404.13 = 21,584.51/x
  3. Step 3: Cross multiply
    45,605.96x = 68,404.13 × 21,584.51
  4. Step 4: Simplify right side
    45,605.96x = 1,476,469,520.10
  5. Step 5: Solve for x
    x = 1,476,469,520.10/45,605.96
  6. Step 6: Final answer
    x = 32,374.49

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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.