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Finding the Fourth Proportional to 36,544.50, 54,818.55 and 11,920.50

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Solution

The fourth proportional to 36,544.50, 54,818.55 and 11,920.50 is: 17,881.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,544.50 : 54,818.55 = 11,920.50 : x
  2. Step 2: Convert to fraction form
    36,544.50/54,818.55 = 11,920.50/x
  3. Step 3: Cross multiply
    36,544.50x = 54,818.55 × 11,920.50
  4. Step 4: Simplify right side
    36,544.50x = 653,464,525.28
  5. Step 5: Solve for x
    x = 653,464,525.28/36,544.50
  6. Step 6: Final answer
    x = 17,881.34

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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.