Home / 36,090.21-54,144.65-11,129.70

Finding the Fourth Proportional to 36,090.21, 54,144.65 and 11,129.70

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Solution

The fourth proportional to 36,090.21, 54,144.65 and 11,129.70 is: 16,697.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,090.21 : 54,144.65 = 11,129.70 : x
  2. Step 2: Convert to fraction form
    36,090.21/54,144.65 = 11,129.70/x
  3. Step 3: Cross multiply
    36,090.21x = 54,144.65 × 11,129.70
  4. Step 4: Simplify right side
    36,090.21x = 602,613,655.46
  5. Step 5: Solve for x
    x = 602,613,655.46/36,090.21
  6. Step 6: Final answer
    x = 16,697.43

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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.