Home / 80,829.30-111,544.32-45,022.44

Finding the Fourth Proportional to 80,829.30, 111,544.32 and 45,022.44

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Solution

The fourth proportional to 80,829.30, 111,544.32 and 45,022.44 is: 62,130.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,829.30 : 111,544.32 = 45,022.44 : x
  2. Step 2: Convert to fraction form
    80,829.30/111,544.32 = 45,022.44/x
  3. Step 3: Cross multiply
    80,829.30x = 111,544.32 × 45,022.44
  4. Step 4: Simplify right side
    80,829.30x = 5,021,997,454.54
  5. Step 5: Solve for x
    x = 5,021,997,454.54/80,829.30
  6. Step 6: Final answer
    x = 62,130.90

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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.