Home / 80,495.24-111,159.08-51,865.16

Finding the Fourth Proportional to 80,495.24, 111,159.08 and 51,865.16

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Solution

The fourth proportional to 80,495.24, 111,159.08 and 51,865.16 is: 71,622.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,495.24 : 111,159.08 = 51,865.16 : x
  2. Step 2: Convert to fraction form
    80,495.24/111,159.08 = 51,865.16/x
  3. Step 3: Cross multiply
    80,495.24x = 111,159.08 × 51,865.16
  4. Step 4: Simplify right side
    80,495.24x = 5,765,283,469.65
  5. Step 5: Solve for x
    x = 5,765,283,469.65/80,495.24
  6. Step 6: Final answer
    x = 71,622.66

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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.