Home / 68,940.03-103,439.36-38,958.39

Finding the Fourth Proportional to 68,940.03, 103,439.36 and 38,958.39

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Solution

The fourth proportional to 68,940.03, 103,439.36 and 38,958.39 is: 58,454.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,940.03 : 103,439.36 = 38,958.39 : x
  2. Step 2: Convert to fraction form
    68,940.03/103,439.36 = 38,958.39/x
  3. Step 3: Cross multiply
    68,940.03x = 103,439.36 × 38,958.39
  4. Step 4: Simplify right side
    68,940.03x = 4,029,830,733.44
  5. Step 5: Solve for x
    x = 4,029,830,733.44/68,940.03
  6. Step 6: Final answer
    x = 58,454.15

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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.