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Finding the Fourth Proportional to 80,014.86, 120,064.20 and 51,928.30

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Solution

The fourth proportional to 80,014.86, 120,064.20 and 51,928.30 is: 77,919.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,014.86 : 120,064.20 = 51,928.30 : x
  2. Step 2: Convert to fraction form
    80,014.86/120,064.20 = 51,928.30/x
  3. Step 3: Cross multiply
    80,014.86x = 120,064.20 × 51,928.30
  4. Step 4: Simplify right side
    80,014.86x = 6,234,729,796.86
  5. Step 5: Solve for x
    x = 6,234,729,796.86/80,014.86
  6. Step 6: Final answer
    x = 77,919.65

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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.