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Finding the Fourth Proportional to 82,324.80, 123,314.40 and 45,345.60

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Solution

The fourth proportional to 82,324.80, 123,314.40 and 45,345.60 is: 67,923.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,324.80 : 123,314.40 = 45,345.60 : x
  2. Step 2: Convert to fraction form
    82,324.80/123,314.40 = 45,345.60/x
  3. Step 3: Cross multiply
    82,324.80x = 123,314.40 × 45,345.60
  4. Step 4: Simplify right side
    82,324.80x = 5,591,765,456.64
  5. Step 5: Solve for x
    x = 5,591,765,456.64/82,324.80
  6. Step 6: Final answer
    x = 67,923.22

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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.