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Finding the Fourth Proportional to 80,064.86, 120,092.93 and 40,620.94

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Solution

The fourth proportional to 80,064.86, 120,092.93 and 40,620.94 is: 60,929.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,064.86 : 120,092.93 = 40,620.94 : x
  2. Step 2: Convert to fraction form
    80,064.86/120,092.93 = 40,620.94/x
  3. Step 3: Cross multiply
    80,064.86x = 120,092.93 × 40,620.94
  4. Step 4: Simplify right side
    80,064.86x = 4,878,288,028.47
  5. Step 5: Solve for x
    x = 4,878,288,028.47/80,064.86
  6. Step 6: Final answer
    x = 60,929.21

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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.