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Finding the Fourth Proportional to 89,344.80, 133,968.60 and 36,759.60

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Solution

The fourth proportional to 89,344.80, 133,968.60 and 36,759.60 is: 55,119.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,344.80 : 133,968.60 = 36,759.60 : x
  2. Step 2: Convert to fraction form
    89,344.80/133,968.60 = 36,759.60/x
  3. Step 3: Cross multiply
    89,344.80x = 133,968.60 × 36,759.60
  4. Step 4: Simplify right side
    89,344.80x = 4,924,632,148.56
  5. Step 5: Solve for x
    x = 4,924,632,148.56/89,344.80
  6. Step 6: Final answer
    x = 55,119.40

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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.