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Finding the Fourth Proportional to 49,040.40, 73,570.20 and 20,960.40

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Solution

The fourth proportional to 49,040.40, 73,570.20 and 20,960.40 is: 31,444.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,040.40 : 73,570.20 = 20,960.40 : x
  2. Step 2: Convert to fraction form
    49,040.40/73,570.20 = 20,960.40/x
  3. Step 3: Cross multiply
    49,040.40x = 73,570.20 × 20,960.40
  4. Step 4: Simplify right side
    49,040.40x = 1,542,060,820.08
  5. Step 5: Solve for x
    x = 1,542,060,820.08/49,040.40
  6. Step 6: Final answer
    x = 31,444.70

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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.