Home / 51,198.11-70,653.72-28,538.54

Finding the Fourth Proportional to 51,198.11, 70,653.72 and 28,538.54

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Solution

The fourth proportional to 51,198.11, 70,653.72 and 28,538.54 is: 39,383.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,198.11 : 70,653.72 = 28,538.54 : x
  2. Step 2: Convert to fraction form
    51,198.11/70,653.72 = 28,538.54/x
  3. Step 3: Cross multiply
    51,198.11x = 70,653.72 × 28,538.54
  4. Step 4: Simplify right side
    51,198.11x = 2,016,354,033.07
  5. Step 5: Solve for x
    x = 2,016,354,033.07/51,198.11
  6. Step 6: Final answer
    x = 39,383.37

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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.