Home / 98,087.22-135,360.45-55,060.70

Finding the Fourth Proportional to 98,087.22, 135,360.45 and 55,060.70

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Solution

The fourth proportional to 98,087.22, 135,360.45 and 55,060.70 is: 75,983.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,087.22 : 135,360.45 = 55,060.70 : x
  2. Step 2: Convert to fraction form
    98,087.22/135,360.45 = 55,060.70/x
  3. Step 3: Cross multiply
    98,087.22x = 135,360.45 × 55,060.70
  4. Step 4: Simplify right side
    98,087.22x = 7,453,040,452.51
  5. Step 5: Solve for x
    x = 7,453,040,452.51/98,087.22
  6. Step 6: Final answer
    x = 75,983.81

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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.