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Finding the Third Proportional to 53,369 and 83,716

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Solution

The third proportional to 53,369 and 83,716 is: 131,319.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,369 : 83,716 = 83,716 : x
  2. Step 2: Convert to fraction form
    53,369/83,716 = 83,716/x
  3. Step 3: Cross multiply
    53,369x = 83,716 × 83,716
  4. Step 4: Simplify right side
    53,369x = 7,008,368,656
  5. Step 5: Solve for x
    x = 7,008,368,656/53,369
  6. Step 6: Final answer
    x = 131,319.09

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.