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Finding the Fourth Proportional to 73,299.56, 109,861.86 and 40,028

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Solution

The fourth proportional to 73,299.56, 109,861.86 and 40,028 is: 59,994.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,299.56 : 109,861.86 = 40,028 : x
  2. Step 2: Convert to fraction form
    73,299.56/109,861.86 = 40,028/x
  3. Step 3: Cross multiply
    73,299.56x = 109,861.86 × 40,028
  4. Step 4: Simplify right side
    73,299.56x = 4,397,550,532.08
  5. Step 5: Solve for x
    x = 4,397,550,532.08/73,299.56
  6. Step 6: Final answer
    x = 59,994.23

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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.