Home / 54,705.38-82,082.77-31,331.81

Finding the Fourth Proportional to 54,705.38, 82,082.77 and 31,331.81

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Solution

The fourth proportional to 54,705.38, 82,082.77 and 31,331.81 is: 47,011.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,705.38 : 82,082.77 = 31,331.81 : x
  2. Step 2: Convert to fraction form
    54,705.38/82,082.77 = 31,331.81/x
  3. Step 3: Cross multiply
    54,705.38x = 82,082.77 × 31,331.81
  4. Step 4: Simplify right side
    54,705.38x = 2,571,801,880.79
  5. Step 5: Solve for x
    x = 2,571,801,880.79/54,705.38
  6. Step 6: Final answer
    x = 47,011.87

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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.