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Finding the Fourth Proportional to 66,771.79, 100,178.84 and 29,363.47

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Solution

The fourth proportional to 66,771.79, 100,178.84 and 29,363.47 is: 44,054.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,771.79 : 100,178.84 = 29,363.47 : x
  2. Step 2: Convert to fraction form
    66,771.79/100,178.84 = 29,363.47/x
  3. Step 3: Cross multiply
    66,771.79x = 100,178.84 × 29,363.47
  4. Step 4: Simplify right side
    66,771.79x = 2,941,598,362.97
  5. Step 5: Solve for x
    x = 2,941,598,362.97/66,771.79
  6. Step 6: Final answer
    x = 44,054.51

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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.