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Finding the Fourth Proportional to 68,955, 95,159.16 and 38,330.97

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Solution

The fourth proportional to 68,955, 95,159.16 and 38,330.97 is: 52,897.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,955 : 95,159.16 = 38,330.97 : x
  2. Step 2: Convert to fraction form
    68,955/95,159.16 = 38,330.97/x
  3. Step 3: Cross multiply
    68,955x = 95,159.16 × 38,330.97
  4. Step 4: Simplify right side
    68,955x = 3,647,542,907.19
  5. Step 5: Solve for x
    x = 3,647,542,907.19/68,955
  6. Step 6: Final answer
    x = 52,897.44

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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.