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Finding the Fourth Proportional to 80,272.91, 110,734.62 and 49,636.21

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Solution

The fourth proportional to 80,272.91, 110,734.62 and 49,636.21 is: 68,472.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,272.91 : 110,734.62 = 49,636.21 : x
  2. Step 2: Convert to fraction form
    80,272.91/110,734.62 = 49,636.21/x
  3. Step 3: Cross multiply
    80,272.91x = 110,734.62 × 49,636.21
  4. Step 4: Simplify right side
    80,272.91x = 5,496,446,970.43
  5. Step 5: Solve for x
    x = 5,496,446,970.43/80,272.91
  6. Step 6: Final answer
    x = 68,472.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.