Home / 73,319.70-109,979.55-51,201.30

Finding the Fourth Proportional to 73,319.70, 109,979.55 and 51,201.30

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Solution

The fourth proportional to 73,319.70, 109,979.55 and 51,201.30 is: 76,801.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,319.70 : 109,979.55 = 51,201.30 : x
  2. Step 2: Convert to fraction form
    73,319.70/109,979.55 = 51,201.30/x
  3. Step 3: Cross multiply
    73,319.70x = 109,979.55 × 51,201.30
  4. Step 4: Simplify right side
    73,319.70x = 5,631,095,933.42
  5. Step 5: Solve for x
    x = 5,631,095,933.42/73,319.70
  6. Step 6: Final answer
    x = 76,801.95

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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.