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Finding the Fourth Proportional to 60,072.54, 90,118.14 and 20,079.14

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Solution

The fourth proportional to 60,072.54, 90,118.14 and 20,079.14 is: 30,121.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,072.54 : 90,118.14 = 20,079.14 : x
  2. Step 2: Convert to fraction form
    60,072.54/90,118.14 = 20,079.14/x
  3. Step 3: Cross multiply
    60,072.54x = 90,118.14 × 20,079.14
  4. Step 4: Simplify right side
    60,072.54x = 1,809,494,687.15
  5. Step 5: Solve for x
    x = 1,809,494,687.15/60,072.54
  6. Step 6: Final answer
    x = 30,121.83

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1.5x scale

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.