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Finding the Fourth Proportional to 54,025.20, 80,908.20 and 43,657.20

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Solution

The fourth proportional to 54,025.20, 80,908.20 and 43,657.20 is: 65,381.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,025.20 : 80,908.20 = 43,657.20 : x
  2. Step 2: Convert to fraction form
    54,025.20/80,908.20 = 43,657.20/x
  3. Step 3: Cross multiply
    54,025.20x = 80,908.20 × 43,657.20
  4. Step 4: Simplify right side
    54,025.20x = 3,532,225,469.04
  5. Step 5: Solve for x
    x = 3,532,225,469.04/54,025.20
  6. Step 6: Final answer
    x = 65,381.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.