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Finding the Fourth Proportional to 44,161.88, 66,211.50 and 20,775.56

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Solution

The fourth proportional to 44,161.88, 66,211.50 and 20,775.56 is: 31,148.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,161.88 : 66,211.50 = 20,775.56 : x
  2. Step 2: Convert to fraction form
    44,161.88/66,211.50 = 20,775.56/x
  3. Step 3: Cross multiply
    44,161.88x = 66,211.50 × 20,775.56
  4. Step 4: Simplify right side
    44,161.88x = 1,375,580,990.94
  5. Step 5: Solve for x
    x = 1,375,580,990.94/44,161.88
  6. Step 6: Final answer
    x = 31,148.61

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1.5x scale

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.