Home / 90,867.82-125,393.25-55,055.56

Finding the Fourth Proportional to 90,867.82, 125,393.25 and 55,055.56

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Solution

The fourth proportional to 90,867.82, 125,393.25 and 55,055.56 is: 75,974.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,867.82 : 125,393.25 = 55,055.56 : x
  2. Step 2: Convert to fraction form
    90,867.82/125,393.25 = 55,055.56/x
  3. Step 3: Cross multiply
    90,867.82x = 125,393.25 × 55,055.56
  4. Step 4: Simplify right side
    90,867.82x = 6,903,595,598.97
  5. Step 5: Solve for x
    x = 6,903,595,598.97/90,867.82
  6. Step 6: Final answer
    x = 75,974.04

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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.