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Finding the Fourth Proportional to 40,483.56, 60,735 and 12,781.56

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Solution

The fourth proportional to 40,483.56, 60,735 and 12,781.56 is: 19,175.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,483.56 : 60,735 = 12,781.56 : x
  2. Step 2: Convert to fraction form
    40,483.56/60,735 = 12,781.56/x
  3. Step 3: Cross multiply
    40,483.56x = 60,735 × 12,781.56
  4. Step 4: Simplify right side
    40,483.56x = 776,288,046.60
  5. Step 5: Solve for x
    x = 776,288,046.60/40,483.56
  6. Step 6: Final answer
    x = 19,175.39

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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.