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Finding the Fourth Proportional to 80,020.35, 110,334.41 and 54,541.80

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Solution

The fourth proportional to 80,020.35, 110,334.41 and 54,541.80 is: 75,203.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,020.35 : 110,334.41 = 54,541.80 : x
  2. Step 2: Convert to fraction form
    80,020.35/110,334.41 = 54,541.80/x
  3. Step 3: Cross multiply
    80,020.35x = 110,334.41 × 54,541.80
  4. Step 4: Simplify right side
    80,020.35x = 6,017,836,498.96
  5. Step 5: Solve for x
    x = 6,017,836,498.96/80,020.35
  6. Step 6: Final answer
    x = 75,203.83

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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.