Home / 77,083.76-115,554.60-27,136.64

Finding the Fourth Proportional to 77,083.76, 115,554.60 and 27,136.64

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Solution

The fourth proportional to 77,083.76, 115,554.60 and 27,136.64 is: 40,679.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,083.76 : 115,554.60 = 27,136.64 : x
  2. Step 2: Convert to fraction form
    77,083.76/115,554.60 = 27,136.64/x
  3. Step 3: Cross multiply
    77,083.76x = 115,554.60 × 27,136.64
  4. Step 4: Simplify right side
    77,083.76x = 3,135,763,580.54
  5. Step 5: Solve for x
    x = 3,135,763,580.54/77,083.76
  6. Step 6: Final answer
    x = 40,679.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.