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Finding the Fourth Proportional to 45,221.44, 67,812.72 and 17,500

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Solution

The fourth proportional to 45,221.44, 67,812.72 and 17,500 is: 26,242.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,221.44 : 67,812.72 = 17,500 : x
  2. Step 2: Convert to fraction form
    45,221.44/67,812.72 = 17,500/x
  3. Step 3: Cross multiply
    45,221.44x = 67,812.72 × 17,500
  4. Step 4: Simplify right side
    45,221.44x = 1,186,722,600
  5. Step 5: Solve for x
    x = 1,186,722,600/45,221.44
  6. Step 6: Final answer
    x = 26,242.48

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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.