Home / 80,583.45-111,205.82-50,386.28

Finding the Fourth Proportional to 80,583.45, 111,205.82 and 50,386.28

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Solution

The fourth proportional to 80,583.45, 111,205.82 and 50,386.28 is: 69,533.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,583.45 : 111,205.82 = 50,386.28 : x
  2. Step 2: Convert to fraction form
    80,583.45/111,205.82 = 50,386.28/x
  3. Step 3: Cross multiply
    80,583.45x = 111,205.82 × 50,386.28
  4. Step 4: Simplify right side
    80,583.45x = 5,603,247,028.12
  5. Step 5: Solve for x
    x = 5,603,247,028.12/80,583.45
  6. Step 6: Final answer
    x = 69,533.47

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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.