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Finding the Fourth Proportional to 61,647.30, 92,481.32 and 19,539.12

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Solution

The fourth proportional to 61,647.30, 92,481.32 and 19,539.12 is: 29,311.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,647.30 : 92,481.32 = 19,539.12 : x
  2. Step 2: Convert to fraction form
    61,647.30/92,481.32 = 19,539.12/x
  3. Step 3: Cross multiply
    61,647.30x = 92,481.32 × 19,539.12
  4. Step 4: Simplify right side
    61,647.30x = 1,807,003,609.24
  5. Step 5: Solve for x
    x = 1,807,003,609.24/61,647.30
  6. Step 6: Final answer
    x = 29,311.97

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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.