Home / 80,917.11-111,669.39-45,107.33

Finding the Fourth Proportional to 80,917.11, 111,669.39 and 45,107.33

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Solution

The fourth proportional to 80,917.11, 111,669.39 and 45,107.33 is: 62,250.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,917.11 : 111,669.39 = 45,107.33 : x
  2. Step 2: Convert to fraction form
    80,917.11/111,669.39 = 45,107.33/x
  3. Step 3: Cross multiply
    80,917.11x = 111,669.39 × 45,107.33
  4. Step 4: Simplify right side
    80,917.11x = 5,037,107,467.28
  5. Step 5: Solve for x
    x = 5,037,107,467.28/80,917.11
  6. Step 6: Final answer
    x = 62,250.21

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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.