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Finding the Fourth Proportional to 69,351.40, 95,623.86 and 65,614.60

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Solution

The fourth proportional to 69,351.40, 95,623.86 and 65,614.60 is: 90,471.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,351.40 : 95,623.86 = 65,614.60 : x
  2. Step 2: Convert to fraction form
    69,351.40/95,623.86 = 65,614.60/x
  3. Step 3: Cross multiply
    69,351.40x = 95,623.86 × 65,614.60
  4. Step 4: Simplify right side
    69,351.40x = 6,274,321,324.36
  5. Step 5: Solve for x
    x = 6,274,321,324.36/69,351.40
  6. Step 6: Final answer
    x = 90,471.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.