Home / 54,120.70-74,638.16-33,979.44

Finding the Fourth Proportional to 54,120.70, 74,638.16 and 33,979.44

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Solution

The fourth proportional to 54,120.70, 74,638.16 and 33,979.44 is: 46,861.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,120.70 : 74,638.16 = 33,979.44 : x
  2. Step 2: Convert to fraction form
    54,120.70/74,638.16 = 33,979.44/x
  3. Step 3: Cross multiply
    54,120.70x = 74,638.16 × 33,979.44
  4. Step 4: Simplify right side
    54,120.70x = 2,536,162,879.43
  5. Step 5: Solve for x
    x = 2,536,162,879.43/54,120.70
  6. Step 6: Final answer
    x = 46,861.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.