Home / 76,039.49-104,899.62-49,190.66

Finding the Fourth Proportional to 76,039.49, 104,899.62 and 49,190.66

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Solution

The fourth proportional to 76,039.49, 104,899.62 and 49,190.66 is: 67,860.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,039.49 : 104,899.62 = 49,190.66 : x
  2. Step 2: Convert to fraction form
    76,039.49/104,899.62 = 49,190.66/x
  3. Step 3: Cross multiply
    76,039.49x = 104,899.62 × 49,190.66
  4. Step 4: Simplify right side
    76,039.49x = 5,160,081,279.30
  5. Step 5: Solve for x
    x = 5,160,081,279.30/76,039.49
  6. Step 6: Final answer
    x = 67,860.54

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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.