Home / 81,004.98-111,786.51-45,195.03

Finding the Fourth Proportional to 81,004.98, 111,786.51 and 45,195.03

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Solution

The fourth proportional to 81,004.98, 111,786.51 and 45,195.03 is: 62,368.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,004.98 : 111,786.51 = 45,195.03 : x
  2. Step 2: Convert to fraction form
    81,004.98/111,786.51 = 45,195.03/x
  3. Step 3: Cross multiply
    81,004.98x = 111,786.51 × 45,195.03
  4. Step 4: Simplify right side
    81,004.98x = 5,052,194,673.05
  5. Step 5: Solve for x
    x = 5,052,194,673.05/81,004.98
  6. Step 6: Final answer
    x = 62,368.94

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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.