Home / 54,908.20-82,362.30-51,221.80

Finding the Fourth Proportional to 54,908.20, 82,362.30 and 51,221.80

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Solution

The fourth proportional to 54,908.20, 82,362.30 and 51,221.80 is: 76,832.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,908.20 : 82,362.30 = 51,221.80 : x
  2. Step 2: Convert to fraction form
    54,908.20/82,362.30 = 51,221.80/x
  3. Step 3: Cross multiply
    54,908.20x = 82,362.30 × 51,221.80
  4. Step 4: Simplify right side
    54,908.20x = 4,218,745,258.14
  5. Step 5: Solve for x
    x = 4,218,745,258.14/54,908.20
  6. Step 6: Final answer
    x = 76,832.70

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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.