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Finding the Fourth Proportional to 40,866, 61,313.76 and 20,104.08

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Solution

The fourth proportional to 40,866, 61,313.76 and 20,104.08 is: 30,163.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,866 : 61,313.76 = 20,104.08 : x
  2. Step 2: Convert to fraction form
    40,866/61,313.76 = 20,104.08/x
  3. Step 3: Cross multiply
    40,866x = 61,313.76 × 20,104.08
  4. Step 4: Simplify right side
    40,866x = 1,232,656,736.14
  5. Step 5: Solve for x
    x = 1,232,656,736.14/40,866
  6. Step 6: Final answer
    x = 30,163.38

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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.