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Finding the Fourth Proportional to 40,773.21, 61,185.80 and 18,588.80

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Solution

The fourth proportional to 40,773.21, 61,185.80 and 18,588.80 is: 27,895.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,773.21 : 61,185.80 = 18,588.80 : x
  2. Step 2: Convert to fraction form
    40,773.21/61,185.80 = 18,588.80/x
  3. Step 3: Cross multiply
    40,773.21x = 61,185.80 × 18,588.80
  4. Step 4: Simplify right side
    40,773.21x = 1,137,370,339.58
  5. Step 5: Solve for x
    x = 1,137,370,339.58/40,773.21
  6. Step 6: Final answer
    x = 27,895.04

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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.