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Finding the Fourth Proportional to 66,622.86, 99,930.15 and 22,245.89

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Solution

The fourth proportional to 66,622.86, 99,930.15 and 22,245.89 is: 33,367.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,622.86 : 99,930.15 = 22,245.89 : x
  2. Step 2: Convert to fraction form
    66,622.86/99,930.15 = 22,245.89/x
  3. Step 3: Cross multiply
    66,622.86x = 99,930.15 × 22,245.89
  4. Step 4: Simplify right side
    66,622.86x = 2,223,034,624.93
  5. Step 5: Solve for x
    x = 2,223,034,624.93/66,622.86
  6. Step 6: Final answer
    x = 33,367.45

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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.