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Finding the Fourth Proportional to 68,326.08, 94,311 and 40,040.88

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Solution

The fourth proportional to 68,326.08, 94,311 and 40,040.88 is: 55,268.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,326.08 : 94,311 = 40,040.88 : x
  2. Step 2: Convert to fraction form
    68,326.08/94,311 = 40,040.88/x
  3. Step 3: Cross multiply
    68,326.08x = 94,311 × 40,040.88
  4. Step 4: Simplify right side
    68,326.08x = 3,776,295,433.68
  5. Step 5: Solve for x
    x = 3,776,295,433.68/68,326.08
  6. Step 6: Final answer
    x = 55,268.73

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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.