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Finding the Fourth Proportional to 67,176.27, 100,760.76 and 20,425.50

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Solution

The fourth proportional to 67,176.27, 100,760.76 and 20,425.50 is: 30,637.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,176.27 : 100,760.76 = 20,425.50 : x
  2. Step 2: Convert to fraction form
    67,176.27/100,760.76 = 20,425.50/x
  3. Step 3: Cross multiply
    67,176.27x = 100,760.76 × 20,425.50
  4. Step 4: Simplify right side
    67,176.27x = 2,058,088,903.38
  5. Step 5: Solve for x
    x = 2,058,088,903.38/67,176.27
  6. Step 6: Final answer
    x = 30,637.14

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.