Home / 98,078.73-135,344.55-55,645.26

Finding the Fourth Proportional to 98,078.73, 135,344.55 and 55,645.26

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Solution

The fourth proportional to 98,078.73, 135,344.55 and 55,645.26 is: 76,788.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,078.73 : 135,344.55 = 55,645.26 : x
  2. Step 2: Convert to fraction form
    98,078.73/135,344.55 = 55,645.26/x
  3. Step 3: Cross multiply
    98,078.73x = 135,344.55 × 55,645.26
  4. Step 4: Simplify right side
    98,078.73x = 7,531,282,674.33
  5. Step 5: Solve for x
    x = 7,531,282,674.33/98,078.73
  6. Step 6: Final answer
    x = 76,788.13

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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.