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Finding the Fourth Proportional to 54,150.80, 81,080.40 and 54,150.80

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Solution

The fourth proportional to 54,150.80, 81,080.40 and 54,150.80 is: 81,080.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,150.80 : 81,080.40 = 54,150.80 : x
  2. Step 2: Convert to fraction form
    54,150.80/81,080.40 = 54,150.80/x
  3. Step 3: Cross multiply
    54,150.80x = 81,080.40 × 54,150.80
  4. Step 4: Simplify right side
    54,150.80x = 4,390,568,524.32
  5. Step 5: Solve for x
    x = 4,390,568,524.32/54,150.80
  6. Step 6: Final answer
    x = 81,080.40

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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.