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Finding the Third Proportional to 26,355 and 56,421

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Solution

The third proportional to 26,355 and 56,421 is: 120,786.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,355 : 56,421 = 56,421 : x
  2. Step 2: Convert to fraction form
    26,355/56,421 = 56,421/x
  3. Step 3: Cross multiply
    26,355x = 56,421 × 56,421
  4. Step 4: Simplify right side
    26,355x = 3,183,329,241
  5. Step 5: Solve for x
    x = 3,183,329,241/26,355
  6. Step 6: Final answer
    x = 120,786.54

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.