Home / 98,284.82-135,637.78-55,277.78

Finding the Fourth Proportional to 98,284.82, 135,637.78 and 55,277.78

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Solution

The fourth proportional to 98,284.82, 135,637.78 and 55,277.78 is: 76,285.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,284.82 : 135,637.78 = 55,277.78 : x
  2. Step 2: Convert to fraction form
    98,284.82/135,637.78 = 55,277.78/x
  3. Step 3: Cross multiply
    98,284.82x = 135,637.78 × 55,277.78
  4. Step 4: Simplify right side
    98,284.82x = 7,497,754,546.15
  5. Step 5: Solve for x
    x = 7,497,754,546.15/98,284.82
  6. Step 6: Final answer
    x = 76,285.99

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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.