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Finding the Fourth Proportional to 68,310, 94,268.52 and 38,502

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Solution

The fourth proportional to 68,310, 94,268.52 and 38,502 is: 53,133.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,310 : 94,268.52 = 38,502 : x
  2. Step 2: Convert to fraction form
    68,310/94,268.52 = 38,502/x
  3. Step 3: Cross multiply
    68,310x = 94,268.52 × 38,502
  4. Step 4: Simplify right side
    68,310x = 3,629,526,557.04
  5. Step 5: Solve for x
    x = 3,629,526,557.04/68,310
  6. Step 6: Final answer
    x = 53,133.17

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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.