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Finding the Fourth Proportional to 80,170.81, 110,628.18 and 54,276.68

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Solution

The fourth proportional to 80,170.81, 110,628.18 and 54,276.68 is: 74,896.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,170.81 : 110,628.18 = 54,276.68 : x
  2. Step 2: Convert to fraction form
    80,170.81/110,628.18 = 54,276.68/x
  3. Step 3: Cross multiply
    80,170.81x = 110,628.18 × 54,276.68
  4. Step 4: Simplify right side
    80,170.81x = 6,004,530,397.88
  5. Step 5: Solve for x
    x = 6,004,530,397.88/80,170.81
  6. Step 6: Final answer
    x = 74,896.72

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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.