Home / 82,409.78-123,653.55-29,805.14

Finding the Fourth Proportional to 82,409.78, 123,653.55 and 29,805.14

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Solution

The fourth proportional to 82,409.78, 123,653.55 and 29,805.14 is: 44,721.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,409.78 : 123,653.55 = 29,805.14 : x
  2. Step 2: Convert to fraction form
    82,409.78/123,653.55 = 29,805.14/x
  3. Step 3: Cross multiply
    82,409.78x = 123,653.55 × 29,805.14
  4. Step 4: Simplify right side
    82,409.78x = 3,685,511,369.25
  5. Step 5: Solve for x
    x = 3,685,511,369.25/82,409.78
  6. Step 6: Final answer
    x = 44,721.77

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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.