Home / 76,121.80-114,172.62-34,559.24

Finding the Fourth Proportional to 76,121.80, 114,172.62 and 34,559.24

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Solution

The fourth proportional to 76,121.80, 114,172.62 and 34,559.24 is: 51,834.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,121.80 : 114,172.62 = 34,559.24 : x
  2. Step 2: Convert to fraction form
    76,121.80/114,172.62 = 34,559.24/x
  3. Step 3: Cross multiply
    76,121.80x = 114,172.62 × 34,559.24
  4. Step 4: Simplify right side
    76,121.80x = 3,945,718,976.01
  5. Step 5: Solve for x
    x = 3,945,718,976.01/76,121.80
  6. Step 6: Final answer
    x = 51,834.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.