Home / 90,676.21-125,133.31-50,388.94

Finding the Fourth Proportional to 90,676.21, 125,133.31 and 50,388.94

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Solution

The fourth proportional to 90,676.21, 125,133.31 and 50,388.94 is: 69,536.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,676.21 : 125,133.31 = 50,388.94 : x
  2. Step 2: Convert to fraction form
    90,676.21/125,133.31 = 50,388.94/x
  3. Step 3: Cross multiply
    90,676.21x = 125,133.31 × 50,388.94
  4. Step 4: Simplify right side
    90,676.21x = 6,305,334,081.68
  5. Step 5: Solve for x
    x = 6,305,334,081.68/90,676.21
  6. Step 6: Final answer
    x = 69,536.81

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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.