Home / 81,112.56-121,648.33-24,173.34

Finding the Fourth Proportional to 81,112.56, 121,648.33 and 24,173.34

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Solution

The fourth proportional to 81,112.56, 121,648.33 and 24,173.34 is: 36,253.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,112.56 : 121,648.33 = 24,173.34 : x
  2. Step 2: Convert to fraction form
    81,112.56/121,648.33 = 24,173.34/x
  3. Step 3: Cross multiply
    81,112.56x = 121,648.33 × 24,173.34
  4. Step 4: Simplify right side
    81,112.56x = 2,940,646,015.56
  5. Step 5: Solve for x
    x = 2,940,646,015.56/81,112.56
  6. Step 6: Final answer
    x = 36,253.89

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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.