Home / 56,136.68-77,361.44-40,193.44

Finding the Fourth Proportional to 56,136.68, 77,361.44 and 40,193.44

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Solution

The fourth proportional to 56,136.68, 77,361.44 and 40,193.44 is: 55,390.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,136.68 : 77,361.44 = 40,193.44 : x
  2. Step 2: Convert to fraction form
    56,136.68/77,361.44 = 40,193.44/x
  3. Step 3: Cross multiply
    56,136.68x = 77,361.44 × 40,193.44
  4. Step 4: Simplify right side
    56,136.68x = 3,109,422,396.95
  5. Step 5: Solve for x
    x = 3,109,422,396.95/56,136.68
  6. Step 6: Final answer
    x = 55,390.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.