Home / 55,169.92-76,134.28-31,301.20

Finding the Fourth Proportional to 55,169.92, 76,134.28 and 31,301.20

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Solution

The fourth proportional to 55,169.92, 76,134.28 and 31,301.20 is: 43,195.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,169.92 : 76,134.28 = 31,301.20 : x
  2. Step 2: Convert to fraction form
    55,169.92/76,134.28 = 31,301.20/x
  3. Step 3: Cross multiply
    55,169.92x = 76,134.28 × 31,301.20
  4. Step 4: Simplify right side
    55,169.92x = 2,383,094,325.14
  5. Step 5: Solve for x
    x = 2,383,094,325.14/55,169.92
  6. Step 6: Final answer
    x = 43,195.54

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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.