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Finding the Fourth Proportional to 54,107.70, 81,161.55 and 50,171.10

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Solution

The fourth proportional to 54,107.70, 81,161.55 and 50,171.10 is: 75,256.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,107.70 : 81,161.55 = 50,171.10 : x
  2. Step 2: Convert to fraction form
    54,107.70/81,161.55 = 50,171.10/x
  3. Step 3: Cross multiply
    54,107.70x = 81,161.55 × 50,171.10
  4. Step 4: Simplify right side
    54,107.70x = 4,071,964,241.21
  5. Step 5: Solve for x
    x = 4,071,964,241.21/54,107.70
  6. Step 6: Final answer
    x = 75,256.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.