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Finding the Fourth Proportional to 54,015.92, 81,023.20 and 18,476.88

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Solution

The fourth proportional to 54,015.92, 81,023.20 and 18,476.88 is: 27,715.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,015.92 : 81,023.20 = 18,476.88 : x
  2. Step 2: Convert to fraction form
    54,015.92/81,023.20 = 18,476.88/x
  3. Step 3: Cross multiply
    54,015.92x = 81,023.20 × 18,476.88
  4. Step 4: Simplify right side
    54,015.92x = 1,497,055,943.62
  5. Step 5: Solve for x
    x = 1,497,055,943.62/54,015.92
  6. Step 6: Final answer
    x = 27,715.09

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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.