Home / 37,128.11-55,680.44-12,162.42

Finding the Fourth Proportional to 37,128.11, 55,680.44 and 12,162.42

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Solution

The fourth proportional to 37,128.11, 55,680.44 and 12,162.42 is: 18,239.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,128.11 : 55,680.44 = 12,162.42 : x
  2. Step 2: Convert to fraction form
    37,128.11/55,680.44 = 12,162.42/x
  3. Step 3: Cross multiply
    37,128.11x = 55,680.44 × 12,162.42
  4. Step 4: Simplify right side
    37,128.11x = 677,208,836.25
  5. Step 5: Solve for x
    x = 677,208,836.25/37,128.11
  6. Step 6: Final answer
    x = 18,239.79

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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.