Home / 43,772.27-65,634.91-13,780.87

Finding the Fourth Proportional to 43,772.27, 65,634.91 and 13,780.87

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Solution

The fourth proportional to 43,772.27, 65,634.91 and 13,780.87 is: 20,663.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,772.27 : 65,634.91 = 13,780.87 : x
  2. Step 2: Convert to fraction form
    43,772.27/65,634.91 = 13,780.87/x
  3. Step 3: Cross multiply
    43,772.27x = 65,634.91 × 13,780.87
  4. Step 4: Simplify right side
    43,772.27x = 904,505,963.63
  5. Step 5: Solve for x
    x = 904,505,963.63/43,772.27
  6. Step 6: Final answer
    x = 20,663.91

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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.