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Finding the Fourth Proportional to 80,039.92, 120,092.16 and 35,636.32

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Solution

The fourth proportional to 80,039.92, 120,092.16 and 35,636.32 is: 53,468.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,039.92 : 120,092.16 = 35,636.32 : x
  2. Step 2: Convert to fraction form
    80,039.92/120,092.16 = 35,636.32/x
  3. Step 3: Cross multiply
    80,039.92x = 120,092.16 × 35,636.32
  4. Step 4: Simplify right side
    80,039.92x = 4,279,642,643.25
  5. Step 5: Solve for x
    x = 4,279,642,643.25/80,039.92
  6. Step 6: Final answer
    x = 53,468.85

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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.