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Finding the Fourth Proportional to 80,170.56, 110,620.08 and 51,872.40

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Solution

The fourth proportional to 80,170.56, 110,620.08 and 51,872.40 is: 71,574.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,170.56 : 110,620.08 = 51,872.40 : x
  2. Step 2: Convert to fraction form
    80,170.56/110,620.08 = 51,872.40/x
  3. Step 3: Cross multiply
    80,170.56x = 110,620.08 × 51,872.40
  4. Step 4: Simplify right side
    80,170.56x = 5,738,129,037.79
  5. Step 5: Solve for x
    x = 5,738,129,037.79/80,170.56
  6. Step 6: Final answer
    x = 71,574.02

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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.