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Finding the Fourth Proportional to 54,527.60, 81,843.60 and 28,251.20

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Solution

The fourth proportional to 54,527.60, 81,843.60 and 28,251.20 is: 42,403.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,527.60 : 81,843.60 = 28,251.20 : x
  2. Step 2: Convert to fraction form
    54,527.60/81,843.60 = 28,251.20/x
  3. Step 3: Cross multiply
    54,527.60x = 81,843.60 × 28,251.20
  4. Step 4: Simplify right side
    54,527.60x = 2,312,179,912.32
  5. Step 5: Solve for x
    x = 2,312,179,912.32/54,527.60
  6. Step 6: Final answer
    x = 42,403.85

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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.