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Finding the Fourth Proportional to 68,701, 94,807.38 and 38,893

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Solution

The fourth proportional to 68,701, 94,807.38 and 38,893 is: 53,672.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,701 : 94,807.38 = 38,893 : x
  2. Step 2: Convert to fraction form
    68,701/94,807.38 = 38,893/x
  3. Step 3: Cross multiply
    68,701x = 94,807.38 × 38,893
  4. Step 4: Simplify right side
    68,701x = 3,687,343,430.34
  5. Step 5: Solve for x
    x = 3,687,343,430.34/68,701
  6. Step 6: Final answer
    x = 53,672.34

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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.