Home / 73,000.20-109,500.30-49,380.60

Finding the Fourth Proportional to 73,000.20, 109,500.30 and 49,380.60

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Solution

The fourth proportional to 73,000.20, 109,500.30 and 49,380.60 is: 74,070.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,000.20 : 109,500.30 = 49,380.60 : x
  2. Step 2: Convert to fraction form
    73,000.20/109,500.30 = 49,380.60/x
  3. Step 3: Cross multiply
    73,000.20x = 109,500.30 × 49,380.60
  4. Step 4: Simplify right side
    73,000.20x = 5,407,190,514.18
  5. Step 5: Solve for x
    x = 5,407,190,514.18/73,000.20
  6. Step 6: Final answer
    x = 74,070.90

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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.