Home / 85,068.62-117,394.78-49,260.56

Finding the Fourth Proportional to 85,068.62, 117,394.78 and 49,260.56

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Solution

The fourth proportional to 85,068.62, 117,394.78 and 49,260.56 is: 67,979.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,068.62 : 117,394.78 = 49,260.56 : x
  2. Step 2: Convert to fraction form
    85,068.62/117,394.78 = 49,260.56/x
  3. Step 3: Cross multiply
    85,068.62x = 117,394.78 × 49,260.56
  4. Step 4: Simplify right side
    85,068.62x = 5,782,932,603.88
  5. Step 5: Solve for x
    x = 5,782,932,603.88/85,068.62
  6. Step 6: Final answer
    x = 67,979.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.