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Finding the Fourth Proportional to 36,495.56, 54,751.55 and 13,122

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Solution

The fourth proportional to 36,495.56, 54,751.55 and 13,122 is: 19,685.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,495.56 : 54,751.55 = 13,122 : x
  2. Step 2: Convert to fraction form
    36,495.56/54,751.55 = 13,122/x
  3. Step 3: Cross multiply
    36,495.56x = 54,751.55 × 13,122
  4. Step 4: Simplify right side
    36,495.56x = 718,449,773.49
  5. Step 5: Solve for x
    x = 718,449,773.49/36,495.56
  6. Step 6: Final answer
    x = 19,685.95

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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.