Home / 73,267.20-109,900.80-28,869.78

Finding the Fourth Proportional to 73,267.20, 109,900.80 and 28,869.78

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Solution

The fourth proportional to 73,267.20, 109,900.80 and 28,869.78 is: 43,304.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,267.20 : 109,900.80 = 28,869.78 : x
  2. Step 2: Convert to fraction form
    73,267.20/109,900.80 = 28,869.78/x
  3. Step 3: Cross multiply
    73,267.20x = 109,900.80 × 28,869.78
  4. Step 4: Simplify right side
    73,267.20x = 3,172,811,917.82
  5. Step 5: Solve for x
    x = 3,172,811,917.82/73,267.20
  6. Step 6: Final answer
    x = 43,304.67

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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.