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Finding the Fourth Proportional to 40,662.78, 60,964.03 and 19,304.92

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Solution

The fourth proportional to 40,662.78, 60,964.03 and 19,304.92 is: 28,943.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,662.78 : 60,964.03 = 19,304.92 : x
  2. Step 2: Convert to fraction form
    40,662.78/60,964.03 = 19,304.92/x
  3. Step 3: Cross multiply
    40,662.78x = 60,964.03 × 19,304.92
  4. Step 4: Simplify right side
    40,662.78x = 1,176,905,722.03
  5. Step 5: Solve for x
    x = 1,176,905,722.03/40,662.78
  6. Step 6: Final answer
    x = 28,943.07

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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.