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Finding the Fourth Proportional to 72,073.44, 108,103.56 and 51,103.44

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Solution

The fourth proportional to 72,073.44, 108,103.56 and 51,103.44 is: 76,650.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,073.44 : 108,103.56 = 51,103.44 : x
  2. Step 2: Convert to fraction form
    72,073.44/108,103.56 = 51,103.44/x
  3. Step 3: Cross multiply
    72,073.44x = 108,103.56 × 51,103.44
  4. Step 4: Simplify right side
    72,073.44x = 5,524,463,792.25
  5. Step 5: Solve for x
    x = 5,524,463,792.25/72,073.44
  6. Step 6: Final answer
    x = 76,650.48

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1.5x scale

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.