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Finding the Fourth Proportional to 40,456.32, 60,675.84 and 12,747.84

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Solution

The fourth proportional to 40,456.32, 60,675.84 and 12,747.84 is: 19,119.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,456.32 : 60,675.84 = 12,747.84 : x
  2. Step 2: Convert to fraction form
    40,456.32/60,675.84 = 12,747.84/x
  3. Step 3: Cross multiply
    40,456.32x = 60,675.84 × 12,747.84
  4. Step 4: Simplify right side
    40,456.32x = 773,485,900.19
  5. Step 5: Solve for x
    x = 773,485,900.19/40,456.32
  6. Step 6: Final answer
    x = 19,119.04

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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.