Home / 85,986.82-118,667.14-57,257.22

Finding the Fourth Proportional to 85,986.82, 118,667.14 and 57,257.22

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Solution

The fourth proportional to 85,986.82, 118,667.14 and 57,257.22 is: 79,018.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,986.82 : 118,667.14 = 57,257.22 : x
  2. Step 2: Convert to fraction form
    85,986.82/118,667.14 = 57,257.22/x
  3. Step 3: Cross multiply
    85,986.82x = 118,667.14 × 57,257.22
  4. Step 4: Simplify right side
    85,986.82x = 6,794,550,541.75
  5. Step 5: Solve for x
    x = 6,794,550,541.75/85,986.82
  6. Step 6: Final answer
    x = 79,018.51

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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.