Home / 66,789.96-100,119.06-37,221.72

Finding the Fourth Proportional to 66,789.96, 100,119.06 and 37,221.72

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Solution

The fourth proportional to 66,789.96, 100,119.06 and 37,221.72 is: 55,795.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,789.96 : 100,119.06 = 37,221.72 : x
  2. Step 2: Convert to fraction form
    66,789.96/100,119.06 = 37,221.72/x
  3. Step 3: Cross multiply
    66,789.96x = 100,119.06 × 37,221.72
  4. Step 4: Simplify right side
    66,789.96x = 3,726,603,617.98
  5. Step 5: Solve for x
    x = 3,726,603,617.98/66,789.96
  6. Step 6: Final answer
    x = 55,795.87

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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.