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Finding the Fourth Proportional to 89,325, 133,808.88 and 53,766.60

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Solution

The fourth proportional to 89,325, 133,808.88 and 53,766.60 is: 80,542.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,325 : 133,808.88 = 53,766.60 : x
  2. Step 2: Convert to fraction form
    89,325/133,808.88 = 53,766.60/x
  3. Step 3: Cross multiply
    89,325x = 133,808.88 × 53,766.60
  4. Step 4: Simplify right side
    89,325x = 7,194,448,527.41
  5. Step 5: Solve for x
    x = 7,194,448,527.41/89,325
  6. Step 6: Final answer
    x = 80,542.38

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1.5x scale

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.