Home / 68,145.24-102,218.30-23,771.80

Finding the Fourth Proportional to 68,145.24, 102,218.30 and 23,771.80

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Solution

The fourth proportional to 68,145.24, 102,218.30 and 23,771.80 is: 35,657.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,145.24 : 102,218.30 = 23,771.80 : x
  2. Step 2: Convert to fraction form
    68,145.24/102,218.30 = 23,771.80/x
  3. Step 3: Cross multiply
    68,145.24x = 102,218.30 × 23,771.80
  4. Step 4: Simplify right side
    68,145.24x = 2,429,912,983.94
  5. Step 5: Solve for x
    x = 2,429,912,983.94/68,145.24
  6. Step 6: Final answer
    x = 35,657.85

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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.