Home / 77,571.86-116,329.04-27,638.70

Finding the Fourth Proportional to 77,571.86, 116,329.04 and 27,638.70

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Solution

The fourth proportional to 77,571.86, 116,329.04 and 27,638.70 is: 41,447.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,571.86 : 116,329.04 = 27,638.70 : x
  2. Step 2: Convert to fraction form
    77,571.86/116,329.04 = 27,638.70/x
  3. Step 3: Cross multiply
    77,571.86x = 116,329.04 × 27,638.70
  4. Step 4: Simplify right side
    77,571.86x = 3,215,183,299.65
  5. Step 5: Solve for x
    x = 3,215,183,299.65/77,571.86
  6. Step 6: Final answer
    x = 41,447.81

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1.5x scale

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.