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Finding the Fourth Proportional to 40,130, 60,198.04 and 12,047.88

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Solution

The fourth proportional to 40,130, 60,198.04 and 12,047.88 is: 18,072.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,130 : 60,198.04 = 12,047.88 : x
  2. Step 2: Convert to fraction form
    40,130/60,198.04 = 12,047.88/x
  3. Step 3: Cross multiply
    40,130x = 60,198.04 × 12,047.88
  4. Step 4: Simplify right side
    40,130x = 725,258,762.16
  5. Step 5: Solve for x
    x = 725,258,762.16/40,130
  6. Step 6: Final answer
    x = 18,072.73

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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.