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Finding the Third Proportional to 26,430 and 55,455

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Solution

The third proportional to 26,430 and 55,455 is: 116,354.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,430 : 55,455 = 55,455 : x
  2. Step 2: Convert to fraction form
    26,430/55,455 = 55,455/x
  3. Step 3: Cross multiply
    26,430x = 55,455 × 55,455
  4. Step 4: Simplify right side
    26,430x = 3,075,257,025
  5. Step 5: Solve for x
    x = 3,075,257,025/26,430
  6. Step 6: Final answer
    x = 116,354.79

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.