Home / 73,077.30-109,555.20-30,989.70

Finding the Fourth Proportional to 73,077.30, 109,555.20 and 30,989.70

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Solution

The fourth proportional to 73,077.30, 109,555.20 and 30,989.70 is: 46,458.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,077.30 : 109,555.20 = 30,989.70 : x
  2. Step 2: Convert to fraction form
    73,077.30/109,555.20 = 30,989.70/x
  3. Step 3: Cross multiply
    73,077.30x = 109,555.20 × 30,989.70
  4. Step 4: Simplify right side
    73,077.30x = 3,395,082,781.44
  5. Step 5: Solve for x
    x = 3,395,082,781.44/73,077.30
  6. Step 6: Final answer
    x = 46,458.79

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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.