Home / 77,350.20-115,914.60-43,999.80

Finding the Fourth Proportional to 77,350.20, 115,914.60 and 43,999.80

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Solution

The fourth proportional to 77,350.20, 115,914.60 and 43,999.80 is: 65,936.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,350.20 : 115,914.60 = 43,999.80 : x
  2. Step 2: Convert to fraction form
    77,350.20/115,914.60 = 43,999.80/x
  3. Step 3: Cross multiply
    77,350.20x = 115,914.60 × 43,999.80
  4. Step 4: Simplify right side
    77,350.20x = 5,100,219,217.08
  5. Step 5: Solve for x
    x = 5,100,219,217.08/77,350.20
  6. Step 6: Final answer
    x = 65,936.73

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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.