Home / 54,715.10-82,072.62-42,253.30

Finding the Fourth Proportional to 54,715.10, 82,072.62 and 42,253.30

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Solution

The fourth proportional to 54,715.10, 82,072.62 and 42,253.30 is: 63,379.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,715.10 : 82,072.62 = 42,253.30 : x
  2. Step 2: Convert to fraction form
    54,715.10/82,072.62 = 42,253.30/x
  3. Step 3: Cross multiply
    54,715.10x = 82,072.62 × 42,253.30
  4. Step 4: Simplify right side
    54,715.10x = 3,467,839,034.65
  5. Step 5: Solve for x
    x = 3,467,839,034.65/54,715.10
  6. Step 6: Final answer
    x = 63,379.93

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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.