Home / 54,450.46-81,684.34-18,922.64

Finding the Fourth Proportional to 54,450.46, 81,684.34 and 18,922.64

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Solution

The fourth proportional to 54,450.46, 81,684.34 and 18,922.64 is: 28,386.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,450.46 : 81,684.34 = 18,922.64 : x
  2. Step 2: Convert to fraction form
    54,450.46/81,684.34 = 18,922.64/x
  3. Step 3: Cross multiply
    54,450.46x = 81,684.34 × 18,922.64
  4. Step 4: Simplify right side
    54,450.46x = 1,545,683,359.46
  5. Step 5: Solve for x
    x = 1,545,683,359.46/54,450.46
  6. Step 6: Final answer
    x = 28,386.97

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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.