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Finding the Fourth Proportional to 66,887.85, 100,342.15 and 22,511.14

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Solution

The fourth proportional to 66,887.85, 100,342.15 and 22,511.14 is: 33,770.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,887.85 : 100,342.15 = 22,511.14 : x
  2. Step 2: Convert to fraction form
    66,887.85/100,342.15 = 22,511.14/x
  3. Step 3: Cross multiply
    66,887.85x = 100,342.15 × 22,511.14
  4. Step 4: Simplify right side
    66,887.85x = 2,258,815,879.42
  5. Step 5: Solve for x
    x = 2,258,815,879.42/66,887.85
  6. Step 6: Final answer
    x = 33,770.20

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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.