Home / 67,261.60-100,761.18-40,900.96

Finding the Fourth Proportional to 67,261.60, 100,761.18 and 40,900.96

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Solution

The fourth proportional to 67,261.60, 100,761.18 and 40,900.96 is: 61,271.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,261.60 : 100,761.18 = 40,900.96 : x
  2. Step 2: Convert to fraction form
    67,261.60/100,761.18 = 40,900.96/x
  3. Step 3: Cross multiply
    67,261.60x = 100,761.18 × 40,900.96
  4. Step 4: Simplify right side
    67,261.60x = 4,121,228,992.73
  5. Step 5: Solve for x
    x = 4,121,228,992.73/67,261.60
  6. Step 6: Final answer
    x = 61,271.65

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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.