Home / 67,190.20-100,688.10-29,719.60

Finding the Fourth Proportional to 67,190.20, 100,688.10 and 29,719.60

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Solution

The fourth proportional to 67,190.20, 100,688.10 and 29,719.60 is: 44,536.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,190.20 : 100,688.10 = 29,719.60 : x
  2. Step 2: Convert to fraction form
    67,190.20/100,688.10 = 29,719.60/x
  3. Step 3: Cross multiply
    67,190.20x = 100,688.10 × 29,719.60
  4. Step 4: Simplify right side
    67,190.20x = 2,992,410,056.76
  5. Step 5: Solve for x
    x = 2,992,410,056.76/67,190.20
  6. Step 6: Final answer
    x = 44,536.41

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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.