Home / 80,907.82-111,580.08-50,696.38

Finding the Fourth Proportional to 80,907.82, 111,580.08 and 50,696.38

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Solution

The fourth proportional to 80,907.82, 111,580.08 and 50,696.38 is: 69,915.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,907.82 : 111,580.08 = 50,696.38 : x
  2. Step 2: Convert to fraction form
    80,907.82/111,580.08 = 50,696.38/x
  3. Step 3: Cross multiply
    80,907.82x = 111,580.08 × 50,696.38
  4. Step 4: Simplify right side
    80,907.82x = 5,656,706,136.11
  5. Step 5: Solve for x
    x = 5,656,706,136.11/80,907.82
  6. Step 6: Final answer
    x = 69,915.44

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1.5x scale

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.