Home / 97,761.20-134,975.77-65,918.48

Finding the Fourth Proportional to 97,761.20, 134,975.77 and 65,918.48

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Solution

The fourth proportional to 97,761.20, 134,975.77 and 65,918.48 is: 91,011.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,761.20 : 134,975.77 = 65,918.48 : x
  2. Step 2: Convert to fraction form
    97,761.20/134,975.77 = 65,918.48/x
  3. Step 3: Cross multiply
    97,761.20x = 134,975.77 × 65,918.48
  4. Step 4: Simplify right side
    97,761.20x = 8,897,396,755.55
  5. Step 5: Solve for x
    x = 8,897,396,755.55/97,761.20
  6. Step 6: Final answer
    x = 91,011.54

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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.