Home / 80,350.20-120,394.08-56,934.72

Finding the Fourth Proportional to 80,350.20, 120,394.08 and 56,934.72

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Solution

The fourth proportional to 80,350.20, 120,394.08 and 56,934.72 is: 85,309.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,350.20 : 120,394.08 = 56,934.72 : x
  2. Step 2: Convert to fraction form
    80,350.20/120,394.08 = 56,934.72/x
  3. Step 3: Cross multiply
    80,350.20x = 120,394.08 × 56,934.72
  4. Step 4: Simplify right side
    80,350.20x = 6,854,603,234.46
  5. Step 5: Solve for x
    x = 6,854,603,234.46/80,350.20
  6. Step 6: Final answer
    x = 85,309.10

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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.