Home / 68,363.38-102,539.67-21,616.66

Finding the Fourth Proportional to 68,363.38, 102,539.67 and 21,616.66

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Solution

The fourth proportional to 68,363.38, 102,539.67 and 21,616.66 is: 32,423.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,363.38 : 102,539.67 = 21,616.66 : x
  2. Step 2: Convert to fraction form
    68,363.38/102,539.67 = 21,616.66/x
  3. Step 3: Cross multiply
    68,363.38x = 102,539.67 × 21,616.66
  4. Step 4: Simplify right side
    68,363.38x = 2,216,565,182.90
  5. Step 5: Solve for x
    x = 2,216,565,182.90/68,363.38
  6. Step 6: Final answer
    x = 32,423.28

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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.