Home / 89,034.40-133,357.20-53,912.80

Finding the Fourth Proportional to 89,034.40, 133,357.20 and 53,912.80

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Solution

The fourth proportional to 89,034.40, 133,357.20 and 53,912.80 is: 80,751.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,034.40 : 133,357.20 = 53,912.80 : x
  2. Step 2: Convert to fraction form
    89,034.40/133,357.20 = 53,912.80/x
  3. Step 3: Cross multiply
    89,034.40x = 133,357.20 × 53,912.80
  4. Step 4: Simplify right side
    89,034.40x = 7,189,660,052.16
  5. Step 5: Solve for x
    x = 7,189,660,052.16/89,034.40
  6. Step 6: Final answer
    x = 80,751.49

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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.