Home / 79,311.56-109,427.76-51,033.65

Finding the Fourth Proportional to 79,311.56, 109,427.76 and 51,033.65

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Solution

The fourth proportional to 79,311.56, 109,427.76 and 51,033.65 is: 70,412.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,311.56 : 109,427.76 = 51,033.65 : x
  2. Step 2: Convert to fraction form
    79,311.56/109,427.76 = 51,033.65/x
  3. Step 3: Cross multiply
    79,311.56x = 109,427.76 × 51,033.65
  4. Step 4: Simplify right side
    79,311.56x = 5,584,497,456.99
  5. Step 5: Solve for x
    x = 5,584,497,456.99/79,311.56
  6. Step 6: Final answer
    x = 70,412.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.