Home / 81,067.41-111,872.01-45,258.03

Finding the Fourth Proportional to 81,067.41, 111,872.01 and 45,258.03

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Solution

The fourth proportional to 81,067.41, 111,872.01 and 45,258.03 is: 62,455.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,067.41 : 111,872.01 = 45,258.03 : x
  2. Step 2: Convert to fraction form
    81,067.41/111,872.01 = 45,258.03/x
  3. Step 3: Cross multiply
    81,067.41x = 111,872.01 × 45,258.03
  4. Step 4: Simplify right side
    81,067.41x = 5,063,106,784.74
  5. Step 5: Solve for x
    x = 5,063,106,784.74/81,067.41
  6. Step 6: Final answer
    x = 62,455.51

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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.