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Finding the Fourth Proportional to 54,003.92, 81,005.20 and 18,464.88

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Solution

The fourth proportional to 54,003.92, 81,005.20 and 18,464.88 is: 27,697.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,003.92 : 81,005.20 = 18,464.88 : x
  2. Step 2: Convert to fraction form
    54,003.92/81,005.20 = 18,464.88/x
  3. Step 3: Cross multiply
    54,003.92x = 81,005.20 × 18,464.88
  4. Step 4: Simplify right side
    54,003.92x = 1,495,751,297.38
  5. Step 5: Solve for x
    x = 1,495,751,297.38/54,003.92
  6. Step 6: Final answer
    x = 27,697.09

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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.