Home / 76,039.62-104,899.79-49,190.78

Finding the Fourth Proportional to 76,039.62, 104,899.79 and 49,190.78

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Solution

The fourth proportional to 76,039.62, 104,899.79 and 49,190.78 is: 67,860.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,039.62 : 104,899.79 = 49,190.78 : x
  2. Step 2: Convert to fraction form
    76,039.62/104,899.79 = 49,190.78/x
  3. Step 3: Cross multiply
    76,039.62x = 104,899.79 × 49,190.78
  4. Step 4: Simplify right side
    76,039.62x = 5,160,102,491.94
  5. Step 5: Solve for x
    x = 5,160,102,491.94/76,039.62
  6. Step 6: Final answer
    x = 67,860.71

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1.5x scale

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.