Home / 71,450.76-107,170.38-29,318.88

Finding the Fourth Proportional to 71,450.76, 107,170.38 and 29,318.88

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Solution

The fourth proportional to 71,450.76, 107,170.38 and 29,318.88 is: 43,975.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,450.76 : 107,170.38 = 29,318.88 : x
  2. Step 2: Convert to fraction form
    71,450.76/107,170.38 = 29,318.88/x
  3. Step 3: Cross multiply
    71,450.76x = 107,170.38 × 29,318.88
  4. Step 4: Simplify right side
    71,450.76x = 3,142,115,510.77
  5. Step 5: Solve for x
    x = 3,142,115,510.77/71,450.76
  6. Step 6: Final answer
    x = 43,975.96

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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.