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Finding the Fourth Proportional to 54,178.40, 81,235.20 and 27,934.40

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Solution

The fourth proportional to 54,178.40, 81,235.20 and 27,934.40 is: 41,884.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,178.40 : 81,235.20 = 27,934.40 : x
  2. Step 2: Convert to fraction form
    54,178.40/81,235.20 = 27,934.40/x
  3. Step 3: Cross multiply
    54,178.40x = 81,235.20 × 27,934.40
  4. Step 4: Simplify right side
    54,178.40x = 2,269,256,570.88
  5. Step 5: Solve for x
    x = 2,269,256,570.88/54,178.40
  6. Step 6: Final answer
    x = 41,884.89

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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.