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Finding the Fourth Proportional to 40,352.73, 60,538.80 and 12,650.73

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Solution

The fourth proportional to 40,352.73, 60,538.80 and 12,650.73 is: 18,979.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,352.73 : 60,538.80 = 12,650.73 : x
  2. Step 2: Convert to fraction form
    40,352.73/60,538.80 = 12,650.73/x
  3. Step 3: Cross multiply
    40,352.73x = 60,538.80 × 12,650.73
  4. Step 4: Simplify right side
    40,352.73x = 765,860,013.32
  5. Step 5: Solve for x
    x = 765,860,013.32/40,352.73
  6. Step 6: Final answer
    x = 18,979.14

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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.