Home / 45,820.62-68,730.88-12,540.96

Finding the Fourth Proportional to 45,820.62, 68,730.88 and 12,540.96

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Solution

The fourth proportional to 45,820.62, 68,730.88 and 12,540.96 is: 18,811.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,820.62 : 68,730.88 = 12,540.96 : x
  2. Step 2: Convert to fraction form
    45,820.62/68,730.88 = 12,540.96/x
  3. Step 3: Cross multiply
    45,820.62x = 68,730.88 × 12,540.96
  4. Step 4: Simplify right side
    45,820.62x = 861,951,209.01
  5. Step 5: Solve for x
    x = 861,951,209.01/45,820.62
  6. Step 6: Final answer
    x = 18,811.43

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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.