Home / 81,198.36-112,055.75-45,394.33

Finding the Fourth Proportional to 81,198.36, 112,055.75 and 45,394.33

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Solution

The fourth proportional to 81,198.36, 112,055.75 and 45,394.33 is: 62,645.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,198.36 : 112,055.75 = 45,394.33 : x
  2. Step 2: Convert to fraction form
    81,198.36/112,055.75 = 45,394.33/x
  3. Step 3: Cross multiply
    81,198.36x = 112,055.75 × 45,394.33
  4. Step 4: Simplify right side
    81,198.36x = 5,086,695,693.90
  5. Step 5: Solve for x
    x = 5,086,695,693.90/81,198.36
  6. Step 6: Final answer
    x = 62,645.30

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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.