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Finding the Fourth Proportional to 36,660.40, 55,136.40 and 32,869.60

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Solution

The fourth proportional to 36,660.40, 55,136.40 and 32,869.60 is: 49,435.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,660.40 : 55,136.40 = 32,869.60 : x
  2. Step 2: Convert to fraction form
    36,660.40/55,136.40 = 32,869.60/x
  3. Step 3: Cross multiply
    36,660.40x = 55,136.40 × 32,869.60
  4. Step 4: Simplify right side
    36,660.40x = 1,812,311,413.44
  5. Step 5: Solve for x
    x = 1,812,311,413.44/36,660.40
  6. Step 6: Final answer
    x = 49,435.12

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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.