Home / 54,072.08-81,120.60-19,011.92

Finding the Fourth Proportional to 54,072.08, 81,120.60 and 19,011.92

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Solution

The fourth proportional to 54,072.08, 81,120.60 and 19,011.92 is: 28,522.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,072.08 : 81,120.60 = 19,011.92 : x
  2. Step 2: Convert to fraction form
    54,072.08/81,120.60 = 19,011.92/x
  3. Step 3: Cross multiply
    54,072.08x = 81,120.60 × 19,011.92
  4. Step 4: Simplify right side
    54,072.08x = 1,542,258,357.55
  5. Step 5: Solve for x
    x = 1,542,258,357.55/54,072.08
  6. Step 6: Final answer
    x = 28,522.27

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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.