Home / 76,748.20-105,912.42-43,214.44

Finding the Fourth Proportional to 76,748.20, 105,912.42 and 43,214.44

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Solution

The fourth proportional to 76,748.20, 105,912.42 and 43,214.44 is: 59,635.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,748.20 : 105,912.42 = 43,214.44 : x
  2. Step 2: Convert to fraction form
    76,748.20/105,912.42 = 43,214.44/x
  3. Step 3: Cross multiply
    76,748.20x = 105,912.42 × 43,214.44
  4. Step 4: Simplify right side
    76,748.20x = 4,576,945,919.34
  5. Step 5: Solve for x
    x = 4,576,945,919.34/76,748.20
  6. Step 6: Final answer
    x = 59,635.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.