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Finding the Fourth Proportional to 80,137.54, 110,586.42 and 43,838.38

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Solution

The fourth proportional to 80,137.54, 110,586.42 and 43,838.38 is: 60,495.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,137.54 : 110,586.42 = 43,838.38 : x
  2. Step 2: Convert to fraction form
    80,137.54/110,586.42 = 43,838.38/x
  3. Step 3: Cross multiply
    80,137.54x = 110,586.42 × 43,838.38
  4. Step 4: Simplify right side
    80,137.54x = 4,847,929,502.80
  5. Step 5: Solve for x
    x = 4,847,929,502.80/80,137.54
  6. Step 6: Final answer
    x = 60,495.11

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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.