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Finding the Fourth Proportional to 68,164, 94,066.32 and 38,356.64

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Solution

The fourth proportional to 68,164, 94,066.32 and 38,356.64 is: 52,932.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,164 : 94,066.32 = 38,356.64 : x
  2. Step 2: Convert to fraction form
    68,164/94,066.32 = 38,356.64/x
  3. Step 3: Cross multiply
    68,164x = 94,066.32 × 38,356.64
  4. Step 4: Simplify right side
    68,164x = 3,608,067,972.36
  5. Step 5: Solve for x
    x = 3,608,067,972.36/68,164
  6. Step 6: Final answer
    x = 52,932.16

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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.