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Finding the Fourth Proportional to 36,219, 54,240.73 and 18,402.78

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Solution

The fourth proportional to 36,219, 54,240.73 and 18,402.78 is: 27,559.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,219 : 54,240.73 = 18,402.78 : x
  2. Step 2: Convert to fraction form
    36,219/54,240.73 = 18,402.78/x
  3. Step 3: Cross multiply
    36,219x = 54,240.73 × 18,402.78
  4. Step 4: Simplify right side
    36,219x = 998,180,221.23
  5. Step 5: Solve for x
    x = 998,180,221.23/36,219
  6. Step 6: Final answer
    x = 27,559.57

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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.