Home / 68,336.39-102,519.61-20,958.01

Finding the Fourth Proportional to 68,336.39, 102,519.61 and 20,958.01

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Solution

The fourth proportional to 68,336.39, 102,519.61 and 20,958.01 is: 31,441.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,336.39 : 102,519.61 = 20,958.01 : x
  2. Step 2: Convert to fraction form
    68,336.39/102,519.61 = 20,958.01/x
  3. Step 3: Cross multiply
    68,336.39x = 102,519.61 × 20,958.01
  4. Step 4: Simplify right side
    68,336.39x = 2,148,606,702.88
  5. Step 5: Solve for x
    x = 2,148,606,702.88/68,336.39
  6. Step 6: Final answer
    x = 31,441.62

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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.