Home / 98,205.84-135,517.41-57,917.64

Finding the Fourth Proportional to 98,205.84, 135,517.41 and 57,917.64

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Solution

The fourth proportional to 98,205.84, 135,517.41 and 57,917.64 is: 79,922.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,205.84 : 135,517.41 = 57,917.64 : x
  2. Step 2: Convert to fraction form
    98,205.84/135,517.41 = 57,917.64/x
  3. Step 3: Cross multiply
    98,205.84x = 135,517.41 × 57,917.64
  4. Step 4: Simplify right side
    98,205.84x = 7,848,848,566.11
  5. Step 5: Solve for x
    x = 7,848,848,566.11/98,205.84
  6. Step 6: Final answer
    x = 79,922.42

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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.