Home / 77,348.20-115,911.60-43,997.80

Finding the Fourth Proportional to 77,348.20, 115,911.60 and 43,997.80

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Solution

The fourth proportional to 77,348.20, 115,911.60 and 43,997.80 is: 65,933.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,348.20 : 115,911.60 = 43,997.80 : x
  2. Step 2: Convert to fraction form
    77,348.20/115,911.60 = 43,997.80/x
  3. Step 3: Cross multiply
    77,348.20x = 115,911.60 × 43,997.80
  4. Step 4: Simplify right side
    77,348.20x = 5,099,855,394.48
  5. Step 5: Solve for x
    x = 5,099,855,394.48/77,348.20
  6. Step 6: Final answer
    x = 65,933.73

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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.