Home / 81,660.33-112,696.83-45,366.03

Finding the Fourth Proportional to 81,660.33, 112,696.83 and 45,366.03

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Solution

The fourth proportional to 81,660.33, 112,696.83 and 45,366.03 is: 62,608.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,660.33 : 112,696.83 = 45,366.03 : x
  2. Step 2: Convert to fraction form
    81,660.33/112,696.83 = 45,366.03/x
  3. Step 3: Cross multiply
    81,660.33x = 112,696.83 × 45,366.03
  4. Step 4: Simplify right side
    81,660.33x = 5,112,607,770.68
  5. Step 5: Solve for x
    x = 5,112,607,770.68/81,660.33
  6. Step 6: Final answer
    x = 62,608.22

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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.