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Finding the Third Proportional to 35,808 and 77,520

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Solution

The third proportional to 35,808 and 77,520 is: 167,821.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,808 : 77,520 = 77,520 : x
  2. Step 2: Convert to fraction form
    35,808/77,520 = 77,520/x
  3. Step 3: Cross multiply
    35,808x = 77,520 × 77,520
  4. Step 4: Simplify right side
    35,808x = 6,009,350,400
  5. Step 5: Solve for x
    x = 6,009,350,400/35,808
  6. Step 6: Final answer
    x = 167,821.45

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.