Home / 45,469.26-68,148.54-20,502.72

Finding the Fourth Proportional to 45,469.26, 68,148.54 and 20,502.72

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Solution

The fourth proportional to 45,469.26, 68,148.54 and 20,502.72 is: 30,729.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,469.26 : 68,148.54 = 20,502.72 : x
  2. Step 2: Convert to fraction form
    45,469.26/68,148.54 = 20,502.72/x
  3. Step 3: Cross multiply
    45,469.26x = 68,148.54 × 20,502.72
  4. Step 4: Simplify right side
    45,469.26x = 1,397,230,434.03
  5. Step 5: Solve for x
    x = 1,397,230,434.03/45,469.26
  6. Step 6: Final answer
    x = 30,729.12

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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.