Home / 83,629.58-115,504.60-55,076.87

Finding the Fourth Proportional to 83,629.58, 115,504.60 and 55,076.87

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Solution

The fourth proportional to 83,629.58, 115,504.60 and 55,076.87 is: 76,069.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,629.58 : 115,504.60 = 55,076.87 : x
  2. Step 2: Convert to fraction form
    83,629.58/115,504.60 = 55,076.87/x
  3. Step 3: Cross multiply
    83,629.58x = 115,504.60 × 55,076.87
  4. Step 4: Simplify right side
    83,629.58x = 6,361,631,563.22
  5. Step 5: Solve for x
    x = 6,361,631,563.22/83,629.58
  6. Step 6: Final answer
    x = 76,069.16

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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.