Home / 80,494.24-111,157.70-51,864.16

Finding the Fourth Proportional to 80,494.24, 111,157.70 and 51,864.16

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Solution

The fourth proportional to 80,494.24, 111,157.70 and 51,864.16 is: 71,621.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,494.24 : 111,157.70 = 51,864.16 : x
  2. Step 2: Convert to fraction form
    80,494.24/111,157.70 = 51,864.16/x
  3. Step 3: Cross multiply
    80,494.24x = 111,157.70 × 51,864.16
  4. Step 4: Simplify right side
    80,494.24x = 5,765,100,738.03
  5. Step 5: Solve for x
    x = 5,765,100,738.03/80,494.24
  6. Step 6: Final answer
    x = 71,621.28

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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.