Home / 45,351.40-68,015.76-19,075

Finding the Fourth Proportional to 45,351.40, 68,015.76 and 19,075

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Solution

The fourth proportional to 45,351.40, 68,015.76 and 19,075 is: 28,607.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,351.40 : 68,015.76 = 19,075 : x
  2. Step 2: Convert to fraction form
    45,351.40/68,015.76 = 19,075/x
  3. Step 3: Cross multiply
    45,351.40x = 68,015.76 × 19,075
  4. Step 4: Simplify right side
    45,351.40x = 1,297,400,622
  5. Step 5: Solve for x
    x = 1,297,400,622/45,351.40
  6. Step 6: Final answer
    x = 28,607.73

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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.