Home / 36,109.40-54,196.10-21,299.80

Finding the Fourth Proportional to 36,109.40, 54,196.10 and 21,299.80

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Solution

The fourth proportional to 36,109.40, 54,196.10 and 21,299.80 is: 31,968.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,109.40 : 54,196.10 = 21,299.80 : x
  2. Step 2: Convert to fraction form
    36,109.40/54,196.10 = 21,299.80/x
  3. Step 3: Cross multiply
    36,109.40x = 54,196.10 × 21,299.80
  4. Step 4: Simplify right side
    36,109.40x = 1,154,366,090.78
  5. Step 5: Solve for x
    x = 1,154,366,090.78/36,109.40
  6. Step 6: Final answer
    x = 31,968.58

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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.