Home / 54,747.70-82,121.55-45,890.35

Finding the Fourth Proportional to 54,747.70, 82,121.55 and 45,890.35

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Solution

The fourth proportional to 54,747.70, 82,121.55 and 45,890.35 is: 68,835.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,747.70 : 82,121.55 = 45,890.35 : x
  2. Step 2: Convert to fraction form
    54,747.70/82,121.55 = 45,890.35/x
  3. Step 3: Cross multiply
    54,747.70x = 82,121.55 × 45,890.35
  4. Step 4: Simplify right side
    54,747.70x = 3,768,586,672.04
  5. Step 5: Solve for x
    x = 3,768,586,672.04/54,747.70
  6. Step 6: Final answer
    x = 68,835.53

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Similar ratio
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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.