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Finding the Fourth Proportional to 80,031.78, 110,440.89 and 44,221.05

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Solution

The fourth proportional to 80,031.78, 110,440.89 and 44,221.05 is: 61,023.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,031.78 : 110,440.89 = 44,221.05 : x
  2. Step 2: Convert to fraction form
    80,031.78/110,440.89 = 44,221.05/x
  3. Step 3: Cross multiply
    80,031.78x = 110,440.89 × 44,221.05
  4. Step 4: Simplify right side
    80,031.78x = 4,883,812,118.73
  5. Step 5: Solve for x
    x = 4,883,812,118.73/80,031.78
  6. Step 6: Final answer
    x = 61,023.41

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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.