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Finding the Fourth Proportional to 66,414.70, 99,676.45 and 65,896.30

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Solution

The fourth proportional to 66,414.70, 99,676.45 and 65,896.30 is: 98,898.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,414.70 : 99,676.45 = 65,896.30 : x
  2. Step 2: Convert to fraction form
    66,414.70/99,676.45 = 65,896.30/x
  3. Step 3: Cross multiply
    66,414.70x = 99,676.45 × 65,896.30
  4. Step 4: Simplify right side
    66,414.70x = 6,568,309,252.14
  5. Step 5: Solve for x
    x = 6,568,309,252.14/66,414.70
  6. Step 6: Final answer
    x = 98,898.43

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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.