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Finding the Fourth Proportional to 80,908.70, 111,705.89 and 52,241.18

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Solution

The fourth proportional to 80,908.70, 111,705.89 and 52,241.18 is: 72,126.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,908.70 : 111,705.89 = 52,241.18 : x
  2. Step 2: Convert to fraction form
    80,908.70/111,705.89 = 52,241.18/x
  3. Step 3: Cross multiply
    80,908.70x = 111,705.89 × 52,241.18
  4. Step 4: Simplify right side
    80,908.70x = 5,835,646,686.81
  5. Step 5: Solve for x
    x = 5,835,646,686.81/80,908.70
  6. Step 6: Final answer
    x = 72,126.32

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.