Home / 57,121.82-78,817.17-36,975.91

Finding the Fourth Proportional to 57,121.82, 78,817.17 and 36,975.91

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Solution

The fourth proportional to 57,121.82, 78,817.17 and 36,975.91 is: 51,019.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,121.82 : 78,817.17 = 36,975.91 : x
  2. Step 2: Convert to fraction form
    57,121.82/78,817.17 = 36,975.91/x
  3. Step 3: Cross multiply
    57,121.82x = 78,817.17 × 36,975.91
  4. Step 4: Simplify right side
    57,121.82x = 2,914,336,584.37
  5. Step 5: Solve for x
    x = 2,914,336,584.37/57,121.82
  6. Step 6: Final answer
    x = 51,019.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.