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Finding the Fourth Proportional to 66,450, 91,594.08 and 48,516.60

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Solution

The fourth proportional to 66,450, 91,594.08 and 48,516.60 is: 66,874.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,450 : 91,594.08 = 48,516.60 : x
  2. Step 2: Convert to fraction form
    66,450/91,594.08 = 48,516.60/x
  3. Step 3: Cross multiply
    66,450x = 91,594.08 × 48,516.60
  4. Step 4: Simplify right side
    66,450x = 4,443,833,341.73
  5. Step 5: Solve for x
    x = 4,443,833,341.73/66,450
  6. Step 6: Final answer
    x = 66,874.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.