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Finding the Fourth Proportional to 65,652.11, 98,481.65 and 20,676.98

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Solution

The fourth proportional to 65,652.11, 98,481.65 and 20,676.98 is: 31,016.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,652.11 : 98,481.65 = 20,676.98 : x
  2. Step 2: Convert to fraction form
    65,652.11/98,481.65 = 20,676.98/x
  3. Step 3: Cross multiply
    65,652.11x = 98,481.65 × 20,676.98
  4. Step 4: Simplify right side
    65,652.11x = 2,036,303,366.54
  5. Step 5: Solve for x
    x = 2,036,303,366.54/65,652.11
  6. Step 6: Final answer
    x = 31,016.57

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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.