Home / 84,512.94-126,786.44-31,205.26

Finding the Fourth Proportional to 84,512.94, 126,786.44 and 31,205.26

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Solution

The fourth proportional to 84,512.94, 126,786.44 and 31,205.26 is: 46,814.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,512.94 : 126,786.44 = 31,205.26 : x
  2. Step 2: Convert to fraction form
    84,512.94/126,786.44 = 31,205.26/x
  3. Step 3: Cross multiply
    84,512.94x = 126,786.44 × 31,205.26
  4. Step 4: Simplify right side
    84,512.94x = 3,956,403,824.67
  5. Step 5: Solve for x
    x = 3,956,403,824.67/84,512.94
  6. Step 6: Final answer
    x = 46,814.18

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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.