Home / 77,121.62-115,708.67-41,586.38

Finding the Fourth Proportional to 77,121.62, 115,708.67 and 41,586.38

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Solution

The fourth proportional to 77,121.62, 115,708.67 and 41,586.38 is: 62,393.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,121.62 : 115,708.67 = 41,586.38 : x
  2. Step 2: Convert to fraction form
    77,121.62/115,708.67 = 41,586.38/x
  3. Step 3: Cross multiply
    77,121.62x = 115,708.67 × 41,586.38
  4. Step 4: Simplify right side
    77,121.62x = 4,811,904,523.30
  5. Step 5: Solve for x
    x = 4,811,904,523.30/77,121.62
  6. Step 6: Final answer
    x = 62,393.72

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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.