Home / 54,446.46-81,678.35-18,918.65

Finding the Fourth Proportional to 54,446.46, 81,678.35 and 18,918.65

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Solution

The fourth proportional to 54,446.46, 81,678.35 and 18,918.65 is: 28,380.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,446.46 : 81,678.35 = 18,918.65 : x
  2. Step 2: Convert to fraction form
    54,446.46/81,678.35 = 18,918.65/x
  3. Step 3: Cross multiply
    54,446.46x = 81,678.35 × 18,918.65
  4. Step 4: Simplify right side
    54,446.46x = 1,545,243,613.24
  5. Step 5: Solve for x
    x = 1,545,243,613.24/54,446.46
  6. Step 6: Final answer
    x = 28,380.97

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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.