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Finding the Fourth Proportional to 69,012.37, 95,406.90 and 68,380.87

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Solution

The fourth proportional to 69,012.37, 95,406.90 and 68,380.87 is: 94,533.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,012.37 : 95,406.90 = 68,380.87 : x
  2. Step 2: Convert to fraction form
    69,012.37/95,406.90 = 68,380.87/x
  3. Step 3: Cross multiply
    69,012.37x = 95,406.90 × 68,380.87
  4. Step 4: Simplify right side
    69,012.37x = 6,524,006,826.00
  5. Step 5: Solve for x
    x = 6,524,006,826.00/69,012.37
  6. Step 6: Final answer
    x = 94,533.88

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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.