Home / 81,009.35-111,790.58-45,198.59

Finding the Fourth Proportional to 81,009.35, 111,790.58 and 45,198.59

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Solution

The fourth proportional to 81,009.35, 111,790.58 and 45,198.59 is: 62,372.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,009.35 : 111,790.58 = 45,198.59 : x
  2. Step 2: Convert to fraction form
    81,009.35/111,790.58 = 45,198.59/x
  3. Step 3: Cross multiply
    81,009.35x = 111,790.58 × 45,198.59
  4. Step 4: Simplify right side
    81,009.35x = 5,052,775,806.34
  5. Step 5: Solve for x
    x = 5,052,775,806.34/81,009.35
  6. Step 6: Final answer
    x = 62,372.75

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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.