Home / 80,117.16-120,000.60-40,606.44

Finding the Fourth Proportional to 80,117.16, 120,000.60 and 40,606.44

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Solution

The fourth proportional to 80,117.16, 120,000.60 and 40,606.44 is: 60,820.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,117.16 : 120,000.60 = 40,606.44 : x
  2. Step 2: Convert to fraction form
    80,117.16/120,000.60 = 40,606.44/x
  3. Step 3: Cross multiply
    80,117.16x = 120,000.60 × 40,606.44
  4. Step 4: Simplify right side
    80,117.16x = 4,872,797,163.86
  5. Step 5: Solve for x
    x = 4,872,797,163.86/80,117.16
  6. Step 6: Final answer
    x = 60,820.89

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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.