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Finding the Fourth Proportional to 281,050.85, 421,572.37 and 67,816.98

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Solution

The fourth proportional to 281,050.85, 421,572.37 and 67,816.98 is: 101,724.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,050.85 : 421,572.37 = 67,816.98 : x
  2. Step 2: Convert to fraction form
    281,050.85/421,572.37 = 67,816.98/x
  3. Step 3: Cross multiply
    281,050.85x = 421,572.37 × 67,816.98
  4. Step 4: Simplify right side
    281,050.85x = 28,589,764,984.84
  5. Step 5: Solve for x
    x = 28,589,764,984.84/281,050.85
  6. Step 6: Final answer
    x = 101,724.53

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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.