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Finding the Fourth Proportional to 68,735, 94,854.30 and 38,927

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Solution

The fourth proportional to 68,735, 94,854.30 and 38,927 is: 53,719.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,735 : 94,854.30 = 38,927 : x
  2. Step 2: Convert to fraction form
    68,735/94,854.30 = 38,927/x
  3. Step 3: Cross multiply
    68,735x = 94,854.30 × 38,927
  4. Step 4: Simplify right side
    68,735x = 3,692,393,336.10
  5. Step 5: Solve for x
    x = 3,692,393,336.10/68,735
  6. Step 6: Final answer
    x = 53,719.26

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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.