Home / 98,452.86-135,856.82-55,436.28

Finding the Fourth Proportional to 98,452.86, 135,856.82 and 55,436.28

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Solution

The fourth proportional to 98,452.86, 135,856.82 and 55,436.28 is: 76,497.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,452.86 : 135,856.82 = 55,436.28 : x
  2. Step 2: Convert to fraction form
    98,452.86/135,856.82 = 55,436.28/x
  3. Step 3: Cross multiply
    98,452.86x = 135,856.82 × 55,436.28
  4. Step 4: Simplify right side
    98,452.86x = 7,531,396,713.43
  5. Step 5: Solve for x
    x = 7,531,396,713.43/98,452.86
  6. Step 6: Final answer
    x = 76,497.49

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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.