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Finding the Fourth Proportional to 54,598.44, 81,880.22 and 21,310.40

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Solution

The fourth proportional to 54,598.44, 81,880.22 and 21,310.40 is: 31,958.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,598.44 : 81,880.22 = 21,310.40 : x
  2. Step 2: Convert to fraction form
    54,598.44/81,880.22 = 21,310.40/x
  3. Step 3: Cross multiply
    54,598.44x = 81,880.22 × 21,310.40
  4. Step 4: Simplify right side
    54,598.44x = 1,744,900,240.29
  5. Step 5: Solve for x
    x = 1,744,900,240.29/54,598.44
  6. Step 6: Final answer
    x = 31,958.79

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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.