Home / 77,161.43-115,753.23-23,857.56

Finding the Fourth Proportional to 77,161.43, 115,753.23 and 23,857.56

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Solution

The fourth proportional to 77,161.43, 115,753.23 and 23,857.56 is: 35,789.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,161.43 : 115,753.23 = 23,857.56 : x
  2. Step 2: Convert to fraction form
    77,161.43/115,753.23 = 23,857.56/x
  3. Step 3: Cross multiply
    77,161.43x = 115,753.23 × 23,857.56
  4. Step 4: Simplify right side
    77,161.43x = 2,761,589,106.38
  5. Step 5: Solve for x
    x = 2,761,589,106.38/77,161.43
  6. Step 6: Final answer
    x = 35,789.76

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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.