Home / 55,136.88-82,685.40-19,103.58

Finding the Fourth Proportional to 55,136.88, 82,685.40 and 19,103.58

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Solution

The fourth proportional to 55,136.88, 82,685.40 and 19,103.58 is: 28,648.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,136.88 : 82,685.40 = 19,103.58 : x
  2. Step 2: Convert to fraction form
    55,136.88/82,685.40 = 19,103.58/x
  3. Step 3: Cross multiply
    55,136.88x = 82,685.40 × 19,103.58
  4. Step 4: Simplify right side
    55,136.88x = 1,579,587,153.73
  5. Step 5: Solve for x
    x = 1,579,587,153.73/55,136.88
  6. Step 6: Final answer
    x = 28,648.47

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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.