Home / 84,236.36-126,317.70-31,608.92

Finding the Fourth Proportional to 84,236.36, 126,317.70 and 31,608.92

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Solution

The fourth proportional to 84,236.36, 126,317.70 and 31,608.92 is: 47,399.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,236.36 : 126,317.70 = 31,608.92 : x
  2. Step 2: Convert to fraction form
    84,236.36/126,317.70 = 31,608.92/x
  3. Step 3: Cross multiply
    84,236.36x = 126,317.70 × 31,608.92
  4. Step 4: Simplify right side
    84,236.36x = 3,992,766,073.88
  5. Step 5: Solve for x
    x = 3,992,766,073.88/84,236.36
  6. Step 6: Final answer
    x = 47,399.56

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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.