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Finding the Fourth Proportional to 65,251.10, 97,883.11 and 20,866.70

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Solution

The fourth proportional to 65,251.10, 97,883.11 and 20,866.70 is: 31,302.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,251.10 : 97,883.11 = 20,866.70 : x
  2. Step 2: Convert to fraction form
    65,251.10/97,883.11 = 20,866.70/x
  3. Step 3: Cross multiply
    65,251.10x = 97,883.11 × 20,866.70
  4. Step 4: Simplify right side
    65,251.10x = 2,042,497,491.44
  5. Step 5: Solve for x
    x = 2,042,497,491.44/65,251.10
  6. Step 6: Final answer
    x = 31,302.12

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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.