Home / 67,150.20-100,725.30-40,423.80

Finding the Fourth Proportional to 67,150.20, 100,725.30 and 40,423.80

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Solution

The fourth proportional to 67,150.20, 100,725.30 and 40,423.80 is: 60,635.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,150.20 : 100,725.30 = 40,423.80 : x
  2. Step 2: Convert to fraction form
    67,150.20/100,725.30 = 40,423.80/x
  3. Step 3: Cross multiply
    67,150.20x = 100,725.30 × 40,423.80
  4. Step 4: Simplify right side
    67,150.20x = 4,071,699,382.14
  5. Step 5: Solve for x
    x = 4,071,699,382.14/67,150.20
  6. Step 6: Final answer
    x = 60,635.70

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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.