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Finding the Fourth Proportional to 68,040.80, 102,061.24 and 37,072.88

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Solution

The fourth proportional to 68,040.80, 102,061.24 and 37,072.88 is: 55,609.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,040.80 : 102,061.24 = 37,072.88 : x
  2. Step 2: Convert to fraction form
    68,040.80/102,061.24 = 37,072.88/x
  3. Step 3: Cross multiply
    68,040.80x = 102,061.24 × 37,072.88
  4. Step 4: Simplify right side
    68,040.80x = 3,783,704,103.17
  5. Step 5: Solve for x
    x = 3,783,704,103.17/68,040.80
  6. Step 6: Final answer
    x = 55,609.34

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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.