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Finding the Fourth Proportional to 68,801, 94,946.82 and 38,993

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Solution

The fourth proportional to 68,801, 94,946.82 and 38,993 is: 53,811.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,801 : 94,946.82 = 38,993 : x
  2. Step 2: Convert to fraction form
    68,801/94,946.82 = 38,993/x
  3. Step 3: Cross multiply
    68,801x = 94,946.82 × 38,993
  4. Step 4: Simplify right side
    68,801x = 3,702,261,352.26
  5. Step 5: Solve for x
    x = 3,702,261,352.26/68,801
  6. Step 6: Final answer
    x = 53,811.16

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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.