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Finding the Fourth Proportional to 68,401.92, 102,613.68 and 26,280.32

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Solution

The fourth proportional to 68,401.92, 102,613.68 and 26,280.32 is: 39,424.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,401.92 : 102,613.68 = 26,280.32 : x
  2. Step 2: Convert to fraction form
    68,401.92/102,613.68 = 26,280.32/x
  3. Step 3: Cross multiply
    68,401.92x = 102,613.68 × 26,280.32
  4. Step 4: Simplify right side
    68,401.92x = 2,696,720,346.78
  5. Step 5: Solve for x
    x = 2,696,720,346.78/68,401.92
  6. Step 6: Final answer
    x = 39,424.63

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1.5x scale

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.