Home / 54,134.20-81,201.30-39,273.40

Finding the Fourth Proportional to 54,134.20, 81,201.30 and 39,273.40

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Solution

The fourth proportional to 54,134.20, 81,201.30 and 39,273.40 is: 58,910.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,134.20 : 81,201.30 = 39,273.40 : x
  2. Step 2: Convert to fraction form
    54,134.20/81,201.30 = 39,273.40/x
  3. Step 3: Cross multiply
    54,134.20x = 81,201.30 × 39,273.40
  4. Step 4: Simplify right side
    54,134.20x = 3,189,051,135.42
  5. Step 5: Solve for x
    x = 3,189,051,135.42/54,134.20
  6. Step 6: Final answer
    x = 58,910.10

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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.