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Finding the Fourth Proportional to 80,599.96, 111,219.66 and 50,388.62

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Solution

The fourth proportional to 80,599.96, 111,219.66 and 50,388.62 is: 69,531.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,599.96 : 111,219.66 = 50,388.62 : x
  2. Step 2: Convert to fraction form
    80,599.96/111,219.66 = 50,388.62/x
  3. Step 3: Cross multiply
    80,599.96x = 111,219.66 × 50,388.62
  4. Step 4: Simplify right side
    80,599.96x = 5,604,205,184.27
  5. Step 5: Solve for x
    x = 5,604,205,184.27/80,599.96
  6. Step 6: Final answer
    x = 69,531.12

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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.