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Finding the Fourth Proportional to 60,096, 90,124.83 and 20,643.60

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Solution

The fourth proportional to 60,096, 90,124.83 and 20,643.60 is: 30,958.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,096 : 90,124.83 = 20,643.60 : x
  2. Step 2: Convert to fraction form
    60,096/90,124.83 = 20,643.60/x
  3. Step 3: Cross multiply
    60,096x = 90,124.83 × 20,643.60
  4. Step 4: Simplify right side
    60,096x = 1,860,500,940.59
  5. Step 5: Solve for x
    x = 1,860,500,940.59/60,096
  6. Step 6: Final answer
    x = 30,958.81

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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.