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Finding the Fourth Proportional to 36,090.88, 54,136.88 and 12,717.60

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Solution

The fourth proportional to 36,090.88, 54,136.88 and 12,717.60 is: 19,076.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,090.88 : 54,136.88 = 12,717.60 : x
  2. Step 2: Convert to fraction form
    36,090.88/54,136.88 = 12,717.60/x
  3. Step 3: Cross multiply
    36,090.88x = 54,136.88 × 12,717.60
  4. Step 4: Simplify right side
    36,090.88x = 688,491,185.09
  5. Step 5: Solve for x
    x = 688,491,185.09/36,090.88
  6. Step 6: Final answer
    x = 19,076.60

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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.