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Finding the Fourth Proportional to 54,185.40, 81,245.70 and 27,941.40

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Solution

The fourth proportional to 54,185.40, 81,245.70 and 27,941.40 is: 41,895.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,185.40 : 81,245.70 = 27,941.40 : x
  2. Step 2: Convert to fraction form
    54,185.40/81,245.70 = 27,941.40/x
  3. Step 3: Cross multiply
    54,185.40x = 81,245.70 × 27,941.40
  4. Step 4: Simplify right side
    54,185.40x = 2,270,118,601.98
  5. Step 5: Solve for x
    x = 2,270,118,601.98/54,185.40
  6. Step 6: Final answer
    x = 41,895.39

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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.