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Finding the Fourth Proportional to 36,240.84, 54,360.54 and 20,625

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Solution

The fourth proportional to 36,240.84, 54,360.54 and 20,625 is: 30,937.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,240.84 : 54,360.54 = 20,625 : x
  2. Step 2: Convert to fraction form
    36,240.84/54,360.54 = 20,625/x
  3. Step 3: Cross multiply
    36,240.84x = 54,360.54 × 20,625
  4. Step 4: Simplify right side
    36,240.84x = 1,121,186,137.50
  5. Step 5: Solve for x
    x = 1,121,186,137.50/36,240.84
  6. Step 6: Final answer
    x = 30,937.09

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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.