Home / 57,290.37-85,940.14-21,768.70

Finding the Fourth Proportional to 57,290.37, 85,940.14 and 21,768.70

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Solution

The fourth proportional to 57,290.37, 85,940.14 and 21,768.70 is: 32,654.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,290.37 : 85,940.14 = 21,768.70 : x
  2. Step 2: Convert to fraction form
    57,290.37/85,940.14 = 21,768.70/x
  3. Step 3: Cross multiply
    57,290.37x = 85,940.14 × 21,768.70
  4. Step 4: Simplify right side
    57,290.37x = 1,870,805,125.62
  5. Step 5: Solve for x
    x = 1,870,805,125.62/57,290.37
  6. Step 6: Final answer
    x = 32,654.80

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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.