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Finding the Fourth Proportional to 85,257.77, 117,669.11 and 67,067.19

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Solution

The fourth proportional to 85,257.77, 117,669.11 and 67,067.19 is: 92,563.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,257.77 : 117,669.11 = 67,067.19 : x
  2. Step 2: Convert to fraction form
    85,257.77/117,669.11 = 67,067.19/x
  3. Step 3: Cross multiply
    85,257.77x = 117,669.11 × 67,067.19
  4. Step 4: Simplify right side
    85,257.77x = 7,891,736,222.16
  5. Step 5: Solve for x
    x = 7,891,736,222.16/85,257.77
  6. Step 6: Final answer
    x = 92,563.25

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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.