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Finding the Fourth Proportional to 67,234.10, 100,851.15 and 45,115.70

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Solution

The fourth proportional to 67,234.10, 100,851.15 and 45,115.70 is: 67,673.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,234.10 : 100,851.15 = 45,115.70 : x
  2. Step 2: Convert to fraction form
    67,234.10/100,851.15 = 45,115.70/x
  3. Step 3: Cross multiply
    67,234.10x = 100,851.15 × 45,115.70
  4. Step 4: Simplify right side
    67,234.10x = 4,549,970,228.06
  5. Step 5: Solve for x
    x = 4,549,970,228.06/67,234.10
  6. Step 6: Final answer
    x = 67,673.55

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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.