Home / 81,539.25-112,524.37-47,571.09

Finding the Fourth Proportional to 81,539.25, 112,524.37 and 47,571.09

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Solution

The fourth proportional to 81,539.25, 112,524.37 and 47,571.09 is: 65,648.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,539.25 : 112,524.37 = 47,571.09 : x
  2. Step 2: Convert to fraction form
    81,539.25/112,524.37 = 47,571.09/x
  3. Step 3: Cross multiply
    81,539.25x = 112,524.37 × 47,571.09
  4. Step 4: Simplify right side
    81,539.25x = 5,352,906,932.46
  5. Step 5: Solve for x
    x = 5,352,906,932.46/81,539.25
  6. Step 6: Final answer
    x = 65,648.22

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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.