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Finding the Fourth Proportional to 36,701.90, 55,110.45 and 21,149.90

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Solution

The fourth proportional to 36,701.90, 55,110.45 and 21,149.90 is: 31,758.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,701.90 : 55,110.45 = 21,149.90 : x
  2. Step 2: Convert to fraction form
    36,701.90/55,110.45 = 21,149.90/x
  3. Step 3: Cross multiply
    36,701.90x = 55,110.45 × 21,149.90
  4. Step 4: Simplify right side
    36,701.90x = 1,165,580,506.46
  5. Step 5: Solve for x
    x = 1,165,580,506.46/36,701.90
  6. Step 6: Final answer
    x = 31,758.04

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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.