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Finding the Fourth Proportional to 54,249.60, 81,366.90 and 16,835.40

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Solution

The fourth proportional to 54,249.60, 81,366.90 and 16,835.40 is: 25,250.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,249.60 : 81,366.90 = 16,835.40 : x
  2. Step 2: Convert to fraction form
    54,249.60/81,366.90 = 16,835.40/x
  3. Step 3: Cross multiply
    54,249.60x = 81,366.90 × 16,835.40
  4. Step 4: Simplify right side
    54,249.60x = 1,369,844,308.26
  5. Step 5: Solve for x
    x = 1,369,844,308.26/54,249.60
  6. Step 6: Final answer
    x = 25,250.77

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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.