Home / 81,831.96-122,748.05-25,676.37

Finding the Fourth Proportional to 81,831.96, 122,748.05 and 25,676.37

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Solution

The fourth proportional to 81,831.96, 122,748.05 and 25,676.37 is: 38,514.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,831.96 : 122,748.05 = 25,676.37 : x
  2. Step 2: Convert to fraction form
    81,831.96/122,748.05 = 25,676.37/x
  3. Step 3: Cross multiply
    81,831.96x = 122,748.05 × 25,676.37
  4. Step 4: Simplify right side
    81,831.96x = 3,151,724,348.58
  5. Step 5: Solve for x
    x = 3,151,724,348.58/81,831.96
  6. Step 6: Final answer
    x = 38,514.59

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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.