Home / 66,201.19-91,357.38-38,993.08

Finding the Fourth Proportional to 66,201.19, 91,357.38 and 38,993.08

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Solution

The fourth proportional to 66,201.19, 91,357.38 and 38,993.08 is: 53,810.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,201.19 : 91,357.38 = 38,993.08 : x
  2. Step 2: Convert to fraction form
    66,201.19/91,357.38 = 38,993.08/x
  3. Step 3: Cross multiply
    66,201.19x = 91,357.38 × 38,993.08
  4. Step 4: Simplify right side
    66,201.19x = 3,562,305,626.93
  5. Step 5: Solve for x
    x = 3,562,305,626.93/66,201.19
  6. Step 6: Final answer
    x = 53,810.30

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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.