Home / 80,821.52-111,529.31-44,515.90

Finding the Fourth Proportional to 80,821.52, 111,529.31 and 44,515.90

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Solution

The fourth proportional to 80,821.52, 111,529.31 and 44,515.90 is: 61,429.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,821.52 : 111,529.31 = 44,515.90 : x
  2. Step 2: Convert to fraction form
    80,821.52/111,529.31 = 44,515.90/x
  3. Step 3: Cross multiply
    80,821.52x = 111,529.31 × 44,515.90
  4. Step 4: Simplify right side
    80,821.52x = 4,964,827,611.03
  5. Step 5: Solve for x
    x = 4,964,827,611.03/80,821.52
  6. Step 6: Final answer
    x = 61,429.53

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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.