Home / 54,314.20-81,536.10-30,640.60

Finding the Fourth Proportional to 54,314.20, 81,536.10 and 30,640.60

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Solution

The fourth proportional to 54,314.20, 81,536.10 and 30,640.60 is: 45,997.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,314.20 : 81,536.10 = 30,640.60 : x
  2. Step 2: Convert to fraction form
    54,314.20/81,536.10 = 30,640.60/x
  3. Step 3: Cross multiply
    54,314.20x = 81,536.10 × 30,640.60
  4. Step 4: Simplify right side
    54,314.20x = 2,498,315,025.66
  5. Step 5: Solve for x
    x = 2,498,315,025.66/54,314.20
  6. Step 6: Final answer
    x = 45,997.46

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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.