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Finding the Third Proportional to 35,728 and 77,804

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Solution

The third proportional to 35,728 and 77,804 is: 169,431.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,728 : 77,804 = 77,804 : x
  2. Step 2: Convert to fraction form
    35,728/77,804 = 77,804/x
  3. Step 3: Cross multiply
    35,728x = 77,804 × 77,804
  4. Step 4: Simplify right side
    35,728x = 6,053,462,416
  5. Step 5: Solve for x
    x = 6,053,462,416/35,728
  6. Step 6: Final answer
    x = 169,431.89

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.