Home / 54,660.94-81,991.42-15,219.09

Finding the Fourth Proportional to 54,660.94, 81,991.42 and 15,219.09

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Solution

The fourth proportional to 54,660.94, 81,991.42 and 15,219.09 is: 22,828.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,660.94 : 81,991.42 = 15,219.09 : x
  2. Step 2: Convert to fraction form
    54,660.94/81,991.42 = 15,219.09/x
  3. Step 3: Cross multiply
    54,660.94x = 81,991.42 × 15,219.09
  4. Step 4: Simplify right side
    54,660.94x = 1,247,834,762.16
  5. Step 5: Solve for x
    x = 1,247,834,762.16/54,660.94
  6. Step 6: Final answer
    x = 22,828.64

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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.