Home / 81,169.21-111,997.49-45,352.31

Finding the Fourth Proportional to 81,169.21, 111,997.49 and 45,352.31

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Solution

The fourth proportional to 81,169.21, 111,997.49 and 45,352.31 is: 62,577.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,169.21 : 111,997.49 = 45,352.31 : x
  2. Step 2: Convert to fraction form
    81,169.21/111,997.49 = 45,352.31/x
  3. Step 3: Cross multiply
    81,169.21x = 111,997.49 × 45,352.31
  4. Step 4: Simplify right side
    81,169.21x = 5,079,344,098.95
  5. Step 5: Solve for x
    x = 5,079,344,098.95/81,169.21
  6. Step 6: Final answer
    x = 62,577.22

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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.