Home / 81,517.07-112,441.78-58,889.32

Finding the Fourth Proportional to 81,517.07, 112,441.78 and 58,889.32

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Solution

The fourth proportional to 81,517.07, 112,441.78 and 58,889.32 is: 81,229.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,517.07 : 112,441.78 = 58,889.32 : x
  2. Step 2: Convert to fraction form
    81,517.07/112,441.78 = 58,889.32/x
  3. Step 3: Cross multiply
    81,517.07x = 112,441.78 × 58,889.32
  4. Step 4: Simplify right side
    81,517.07x = 6,621,619,963.79
  5. Step 5: Solve for x
    x = 6,621,619,963.79/81,517.07
  6. Step 6: Final answer
    x = 81,229.86

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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.