Home / 55,142.44-82,730.94-20,075.56

Finding the Fourth Proportional to 55,142.44, 82,730.94 and 20,075.56

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Solution

The fourth proportional to 55,142.44, 82,730.94 and 20,075.56 is: 30,119.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,142.44 : 82,730.94 = 20,075.56 : x
  2. Step 2: Convert to fraction form
    55,142.44/82,730.94 = 20,075.56/x
  3. Step 3: Cross multiply
    55,142.44x = 82,730.94 × 20,075.56
  4. Step 4: Simplify right side
    55,142.44x = 1,660,869,949.83
  5. Step 5: Solve for x
    x = 1,660,869,949.83/55,142.44
  6. Step 6: Final answer
    x = 30,119.63

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1.5x scale

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.