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Finding the Third Proportional to 39,038 and 53,679

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Solution

The third proportional to 39,038 and 53,679 is: 73,811.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,038 : 53,679 = 53,679 : x
  2. Step 2: Convert to fraction form
    39,038/53,679 = 53,679/x
  3. Step 3: Cross multiply
    39,038x = 53,679 × 53,679
  4. Step 4: Simplify right side
    39,038x = 2,881,435,041
  5. Step 5: Solve for x
    x = 2,881,435,041/39,038
  6. Step 6: Final answer
    x = 73,811.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.