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Finding the Fourth Proportional to 66,558.68, 99,836.86 and 16,639.08

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Solution

The fourth proportional to 66,558.68, 99,836.86 and 16,639.08 is: 24,958.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,558.68 : 99,836.86 = 16,639.08 : x
  2. Step 2: Convert to fraction form
    66,558.68/99,836.86 = 16,639.08/x
  3. Step 3: Cross multiply
    66,558.68x = 99,836.86 × 16,639.08
  4. Step 4: Simplify right side
    66,558.68x = 1,661,193,500.49
  5. Step 5: Solve for x
    x = 1,661,193,500.49/66,558.68
  6. Step 6: Final answer
    x = 24,958.33

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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.