Home / 68,815.03-103,211.49-18,883.46

Finding the Fourth Proportional to 68,815.03, 103,211.49 and 18,883.46

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Solution

The fourth proportional to 68,815.03, 103,211.49 and 18,883.46 is: 28,322.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,815.03 : 103,211.49 = 18,883.46 : x
  2. Step 2: Convert to fraction form
    68,815.03/103,211.49 = 18,883.46/x
  3. Step 3: Cross multiply
    68,815.03x = 103,211.49 × 18,883.46
  4. Step 4: Simplify right side
    68,815.03x = 1,948,990,318.69
  5. Step 5: Solve for x
    x = 1,948,990,318.69/68,815.03
  6. Step 6: Final answer
    x = 28,322.16

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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.