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Finding the Fourth Proportional to 61,616, 92,431.30 and 20,063

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Solution

The fourth proportional to 61,616, 92,431.30 and 20,063 is: 30,096.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,616 : 92,431.30 = 20,063 : x
  2. Step 2: Convert to fraction form
    61,616/92,431.30 = 20,063/x
  3. Step 3: Cross multiply
    61,616x = 92,431.30 × 20,063
  4. Step 4: Simplify right side
    61,616x = 1,854,449,171.90
  5. Step 5: Solve for x
    x = 1,854,449,171.90/61,616
  6. Step 6: Final answer
    x = 30,096.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.