Home / 54,458.20-81,687.30-54,069.40

Finding the Fourth Proportional to 54,458.20, 81,687.30 and 54,069.40

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Solution

The fourth proportional to 54,458.20, 81,687.30 and 54,069.40 is: 81,104.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,458.20 : 81,687.30 = 54,069.40 : x
  2. Step 2: Convert to fraction form
    54,458.20/81,687.30 = 54,069.40/x
  3. Step 3: Cross multiply
    54,458.20x = 81,687.30 × 54,069.40
  4. Step 4: Simplify right side
    54,458.20x = 4,416,783,298.62
  5. Step 5: Solve for x
    x = 4,416,783,298.62/54,458.20
  6. Step 6: Final answer
    x = 81,104.10

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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.