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Finding the Fourth Proportional to 53,906.10, 80,859.15 and 16,965.30

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Solution

The fourth proportional to 53,906.10, 80,859.15 and 16,965.30 is: 25,447.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,906.10 : 80,859.15 = 16,965.30 : x
  2. Step 2: Convert to fraction form
    53,906.10/80,859.15 = 16,965.30/x
  3. Step 3: Cross multiply
    53,906.10x = 80,859.15 × 16,965.30
  4. Step 4: Simplify right side
    53,906.10x = 1,371,799,737.50
  5. Step 5: Solve for x
    x = 1,371,799,737.50/53,906.10
  6. Step 6: Final answer
    x = 25,447.95

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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.