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Finding the Third Proportional to 31,260.94 and 68,779.13

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Solution

The third proportional to 31,260.94 and 68,779.13 is: 151,325.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,260.94 : 68,779.13 = 68,779.13 : x
  2. Step 2: Convert to fraction form
    31,260.94/68,779.13 = 68,779.13/x
  3. Step 3: Cross multiply
    31,260.94x = 68,779.13 × 68,779.13
  4. Step 4: Simplify right side
    31,260.94x = 4,730,568,035.77
  5. Step 5: Solve for x
    x = 4,730,568,035.77/31,260.94
  6. Step 6: Final answer
    x = 151,325.21

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.