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Finding the Third Proportional to 50,978 and 77,763

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Solution

The third proportional to 50,978 and 77,763 is: 118,621.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,978 : 77,763 = 77,763 : x
  2. Step 2: Convert to fraction form
    50,978/77,763 = 77,763/x
  3. Step 3: Cross multiply
    50,978x = 77,763 × 77,763
  4. Step 4: Simplify right side
    50,978x = 6,047,084,169
  5. Step 5: Solve for x
    x = 6,047,084,169/50,978
  6. Step 6: Final answer
    x = 118,621.45

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These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.