Home / 68,979.75-103,383.06-29,490.45

Finding the Fourth Proportional to 68,979.75, 103,383.06 and 29,490.45

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Solution

The fourth proportional to 68,979.75, 103,383.06 and 29,490.45 is: 44,198.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,979.75 : 103,383.06 = 29,490.45 : x
  2. Step 2: Convert to fraction form
    68,979.75/103,383.06 = 29,490.45/x
  3. Step 3: Cross multiply
    68,979.75x = 103,383.06 × 29,490.45
  4. Step 4: Simplify right side
    68,979.75x = 3,048,812,961.78
  5. Step 5: Solve for x
    x = 3,048,812,961.78/68,979.75
  6. Step 6: Final answer
    x = 44,198.67

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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.