Home / 80,821.44-111,543.77-48,986.28

Finding the Fourth Proportional to 80,821.44, 111,543.77 and 48,986.28

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Solution

The fourth proportional to 80,821.44, 111,543.77 and 48,986.28 is: 67,607.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,821.44 : 111,543.77 = 48,986.28 : x
  2. Step 2: Convert to fraction form
    80,821.44/111,543.77 = 48,986.28/x
  3. Step 3: Cross multiply
    80,821.44x = 111,543.77 × 48,986.28
  4. Step 4: Simplify right side
    80,821.44x = 5,464,114,104.54
  5. Step 5: Solve for x
    x = 5,464,114,104.54/80,821.44
  6. Step 6: Final answer
    x = 67,607.24

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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.