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Finding the Fourth Proportional to 36,704.40, 55,053.40 and 12,080.40

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Solution

The fourth proportional to 36,704.40, 55,053.40 and 12,080.40 is: 18,119.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,704.40 : 55,053.40 = 12,080.40 : x
  2. Step 2: Convert to fraction form
    36,704.40/55,053.40 = 12,080.40/x
  3. Step 3: Cross multiply
    36,704.40x = 55,053.40 × 12,080.40
  4. Step 4: Simplify right side
    36,704.40x = 665,067,093.36
  5. Step 5: Solve for x
    x = 665,067,093.36/36,704.40
  6. Step 6: Final answer
    x = 18,119.55

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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.