Home / 68,890.62-103,338.48-18,974.58

Finding the Fourth Proportional to 68,890.62, 103,338.48 and 18,974.58

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Solution

The fourth proportional to 68,890.62, 103,338.48 and 18,974.58 is: 28,462.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,890.62 : 103,338.48 = 18,974.58 : x
  2. Step 2: Convert to fraction form
    68,890.62/103,338.48 = 18,974.58/x
  3. Step 3: Cross multiply
    68,890.62x = 103,338.48 × 18,974.58
  4. Step 4: Simplify right side
    68,890.62x = 1,960,804,255.84
  5. Step 5: Solve for x
    x = 1,960,804,255.84/68,890.62
  6. Step 6: Final answer
    x = 28,462.57

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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.