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Finding the Fourth Proportional to 40,999, 61,481.54 and 14,339.40

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Solution

The fourth proportional to 40,999, 61,481.54 and 14,339.40 is: 21,503.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,999 : 61,481.54 = 14,339.40 : x
  2. Step 2: Convert to fraction form
    40,999/61,481.54 = 14,339.40/x
  3. Step 3: Cross multiply
    40,999x = 61,481.54 × 14,339.40
  4. Step 4: Simplify right side
    40,999x = 881,608,394.68
  5. Step 5: Solve for x
    x = 881,608,394.68/40,999
  6. Step 6: Final answer
    x = 21,503.17

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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.