Home / 68,815.26-103,222.80-45,436.14

Finding the Fourth Proportional to 68,815.26, 103,222.80 and 45,436.14

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Solution

The fourth proportional to 68,815.26, 103,222.80 and 45,436.14 is: 68,154.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,815.26 : 103,222.80 = 45,436.14 : x
  2. Step 2: Convert to fraction form
    68,815.26/103,222.80 = 45,436.14/x
  3. Step 3: Cross multiply
    68,815.26x = 103,222.80 × 45,436.14
  4. Step 4: Simplify right side
    68,815.26x = 4,690,045,591.99
  5. Step 5: Solve for x
    x = 4,690,045,591.99/68,815.26
  6. Step 6: Final answer
    x = 68,154.15

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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.