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Finding the Fourth Proportional to 80,404.22, 110,829.66 and 63,380.72

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Solution

The fourth proportional to 80,404.22, 110,829.66 and 63,380.72 is: 87,364.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,404.22 : 110,829.66 = 63,380.72 : x
  2. Step 2: Convert to fraction form
    80,404.22/110,829.66 = 63,380.72/x
  3. Step 3: Cross multiply
    80,404.22x = 110,829.66 × 63,380.72
  4. Step 4: Simplify right side
    80,404.22x = 7,024,463,648.16
  5. Step 5: Solve for x
    x = 7,024,463,648.16/80,404.22
  6. Step 6: Final answer
    x = 87,364.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.