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Finding the Fourth Proportional to 40,801.41, 61,200.90 and 14,487.75

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Solution

The fourth proportional to 40,801.41, 61,200.90 and 14,487.75 is: 21,731.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,801.41 : 61,200.90 = 14,487.75 : x
  2. Step 2: Convert to fraction form
    40,801.41/61,200.90 = 14,487.75/x
  3. Step 3: Cross multiply
    40,801.41x = 61,200.90 × 14,487.75
  4. Step 4: Simplify right side
    40,801.41x = 886,663,338.98
  5. Step 5: Solve for x
    x = 886,663,338.98/40,801.41
  6. Step 6: Final answer
    x = 21,731.19

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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.