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Finding the Fourth Proportional to 66,769.68, 92,142.24 and 38,474.64

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Solution

The fourth proportional to 66,769.68, 92,142.24 and 38,474.64 is: 53,095.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,769.68 : 92,142.24 = 38,474.64 : x
  2. Step 2: Convert to fraction form
    66,769.68/92,142.24 = 38,474.64/x
  3. Step 3: Cross multiply
    66,769.68x = 92,142.24 × 38,474.64
  4. Step 4: Simplify right side
    66,769.68x = 3,545,139,512.79
  5. Step 5: Solve for x
    x = 3,545,139,512.79/66,769.68
  6. Step 6: Final answer
    x = 53,095.05

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.