Home / 68,817.24-103,213.53-18,890.77

Finding the Fourth Proportional to 68,817.24, 103,213.53 and 18,890.77

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Solution

The fourth proportional to 68,817.24, 103,213.53 and 18,890.77 is: 28,332.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,817.24 : 103,213.53 = 18,890.77 : x
  2. Step 2: Convert to fraction form
    68,817.24/103,213.53 = 18,890.77/x
  3. Step 3: Cross multiply
    68,817.24x = 103,213.53 × 18,890.77
  4. Step 4: Simplify right side
    68,817.24x = 1,949,782,540.05
  5. Step 5: Solve for x
    x = 1,949,782,540.05/68,817.24
  6. Step 6: Final answer
    x = 28,332.76

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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.