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Finding the Third Proportional to 19,406.50 and 36,089

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Solution

The third proportional to 19,406.50 and 36,089 is: 67,112.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,406.50 : 36,089 = 36,089 : x
  2. Step 2: Convert to fraction form
    19,406.50/36,089 = 36,089/x
  3. Step 3: Cross multiply
    19,406.50x = 36,089 × 36,089
  4. Step 4: Simplify right side
    19,406.50x = 1,302,415,921
  5. Step 5: Solve for x
    x = 1,302,415,921/19,406.50
  6. Step 6: Final answer
    x = 67,112.36

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Why These Related Problems?

These problems maintain the same ratio (1.86) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.