Home / 45,440.64-68,175.54-20,469.96

Finding the Fourth Proportional to 45,440.64, 68,175.54 and 20,469.96

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Solution

The fourth proportional to 45,440.64, 68,175.54 and 20,469.96 is: 30,711.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,440.64 : 68,175.54 = 20,469.96 : x
  2. Step 2: Convert to fraction form
    45,440.64/68,175.54 = 20,469.96/x
  3. Step 3: Cross multiply
    45,440.64x = 68,175.54 × 20,469.96
  4. Step 4: Simplify right side
    45,440.64x = 1,395,550,576.78
  5. Step 5: Solve for x
    x = 1,395,550,576.78/45,440.64
  6. Step 6: Final answer
    x = 30,711.51

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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.