Home / 45,075.92-67,634.94-20,113.36

Finding the Fourth Proportional to 45,075.92, 67,634.94 and 20,113.36

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Solution

The fourth proportional to 45,075.92, 67,634.94 and 20,113.36 is: 30,179.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,075.92 : 67,634.94 = 20,113.36 : x
  2. Step 2: Convert to fraction form
    45,075.92/67,634.94 = 20,113.36/x
  3. Step 3: Cross multiply
    45,075.92x = 67,634.94 × 20,113.36
  4. Step 4: Simplify right side
    45,075.92x = 1,360,365,896.80
  5. Step 5: Solve for x
    x = 1,360,365,896.80/45,075.92
  6. Step 6: Final answer
    x = 30,179.44

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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.