Home / 51,366.87-77,028.44-20,180.25

Finding the Fourth Proportional to 51,366.87, 77,028.44 and 20,180.25

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Solution

The fourth proportional to 51,366.87, 77,028.44 and 20,180.25 is: 30,261.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,366.87 : 77,028.44 = 20,180.25 : x
  2. Step 2: Convert to fraction form
    51,366.87/77,028.44 = 20,180.25/x
  3. Step 3: Cross multiply
    51,366.87x = 77,028.44 × 20,180.25
  4. Step 4: Simplify right side
    51,366.87x = 1,554,453,075.41
  5. Step 5: Solve for x
    x = 1,554,453,075.41/51,366.87
  6. Step 6: Final answer
    x = 30,261.78

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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.