Home / 85,067.82-117,327.69-54,858.06

Finding the Fourth Proportional to 85,067.82, 117,327.69 and 54,858.06

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Solution

The fourth proportional to 85,067.82, 117,327.69 and 54,858.06 is: 75,661.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,067.82 : 117,327.69 = 54,858.06 : x
  2. Step 2: Convert to fraction form
    85,067.82/117,327.69 = 54,858.06/x
  3. Step 3: Cross multiply
    85,067.82x = 117,327.69 × 54,858.06
  4. Step 4: Simplify right side
    85,067.82x = 6,436,369,457.68
  5. Step 5: Solve for x
    x = 6,436,369,457.68/85,067.82
  6. Step 6: Final answer
    x = 75,661.62

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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.