Home / 80,621.20-111,307.04-51,950.98

Finding the Fourth Proportional to 80,621.20, 111,307.04 and 51,950.98

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Solution

The fourth proportional to 80,621.20, 111,307.04 and 51,950.98 is: 71,724.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,621.20 : 111,307.04 = 51,950.98 : x
  2. Step 2: Convert to fraction form
    80,621.20/111,307.04 = 51,950.98/x
  3. Step 3: Cross multiply
    80,621.20x = 111,307.04 × 51,950.98
  4. Step 4: Simplify right side
    80,621.20x = 5,782,509,808.90
  5. Step 5: Solve for x
    x = 5,782,509,808.90/80,621.20
  6. Step 6: Final answer
    x = 71,724.43

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.