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Finding the Fourth Proportional to 36,061.34, 54,011.34 and 20,845.28

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Solution

The fourth proportional to 36,061.34, 54,011.34 and 20,845.28 is: 31,221.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,061.34 : 54,011.34 = 20,845.28 : x
  2. Step 2: Convert to fraction form
    36,061.34/54,011.34 = 20,845.28/x
  3. Step 3: Cross multiply
    36,061.34x = 54,011.34 × 20,845.28
  4. Step 4: Simplify right side
    36,061.34x = 1,125,881,640.50
  5. Step 5: Solve for x
    x = 1,125,881,640.50/36,061.34
  6. Step 6: Final answer
    x = 31,221.30

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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.