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Finding the Fourth Proportional to 36,478.58, 54,727.62 and 13,105.22

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Solution

The fourth proportional to 36,478.58, 54,727.62 and 13,105.22 is: 19,661.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,478.58 : 54,727.62 = 13,105.22 : x
  2. Step 2: Convert to fraction form
    36,478.58/54,727.62 = 13,105.22/x
  3. Step 3: Cross multiply
    36,478.58x = 54,727.62 × 13,105.22
  4. Step 4: Simplify right side
    36,478.58x = 717,217,500.18
  5. Step 5: Solve for x
    x = 717,217,500.18/36,478.58
  6. Step 6: Final answer
    x = 19,661.33

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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.