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Finding the Fourth Proportional to 68,059.41, 102,089.09 and 20,674.32

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Solution

The fourth proportional to 68,059.41, 102,089.09 and 20,674.32 is: 31,011.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,059.41 : 102,089.09 = 20,674.32 : x
  2. Step 2: Convert to fraction form
    68,059.41/102,089.09 = 20,674.32/x
  3. Step 3: Cross multiply
    68,059.41x = 102,089.09 × 20,674.32
  4. Step 4: Simplify right side
    68,059.41x = 2,110,622,680.74
  5. Step 5: Solve for x
    x = 2,110,622,680.74/68,059.41
  6. Step 6: Final answer
    x = 31,011.47

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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.