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Finding the Fourth Proportional to 68,307, 94,264.38 and 38,499

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Solution

The fourth proportional to 68,307, 94,264.38 and 38,499 is: 53,129.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,307 : 94,264.38 = 38,499 : x
  2. Step 2: Convert to fraction form
    68,307/94,264.38 = 38,499/x
  3. Step 3: Cross multiply
    68,307x = 94,264.38 × 38,499
  4. Step 4: Simplify right side
    68,307x = 3,629,084,365.62
  5. Step 5: Solve for x
    x = 3,629,084,365.62/68,307
  6. Step 6: Final answer
    x = 53,129.03

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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.