Home / 68,289.36-102,433.91-21,545.88

Finding the Fourth Proportional to 68,289.36, 102,433.91 and 21,545.88

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Solution

The fourth proportional to 68,289.36, 102,433.91 and 21,545.88 is: 32,318.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,289.36 : 102,433.91 = 21,545.88 : x
  2. Step 2: Convert to fraction form
    68,289.36/102,433.91 = 21,545.88/x
  3. Step 3: Cross multiply
    68,289.36x = 102,433.91 × 21,545.88
  4. Step 4: Simplify right side
    68,289.36x = 2,207,028,625.06
  5. Step 5: Solve for x
    x = 2,207,028,625.06/68,289.36
  6. Step 6: Final answer
    x = 32,318.78

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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.