Home / 73,020.20-109,287.30-52,972.70

Finding the Fourth Proportional to 73,020.20, 109,287.30 and 52,972.70

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Solution

The fourth proportional to 73,020.20, 109,287.30 and 52,972.70 is: 79,282.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,020.20 : 109,287.30 = 52,972.70 : x
  2. Step 2: Convert to fraction form
    73,020.20/109,287.30 = 52,972.70/x
  3. Step 3: Cross multiply
    73,020.20x = 109,287.30 × 52,972.70
  4. Step 4: Simplify right side
    73,020.20x = 5,789,243,356.71
  5. Step 5: Solve for x
    x = 5,789,243,356.71/73,020.20
  6. Step 6: Final answer
    x = 79,282.76

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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.