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Finding the Fourth Proportional to 40,353.48, 60,539.92 and 12,651.48

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Solution

The fourth proportional to 40,353.48, 60,539.92 and 12,651.48 is: 18,980.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,353.48 : 60,539.92 = 12,651.48 : x
  2. Step 2: Convert to fraction form
    40,353.48/60,539.92 = 12,651.48/x
  3. Step 3: Cross multiply
    40,353.48x = 60,539.92 × 12,651.48
  4. Step 4: Simplify right side
    40,353.48x = 765,919,555.45
  5. Step 5: Solve for x
    x = 765,919,555.45/40,353.48
  6. Step 6: Final answer
    x = 18,980.26

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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.