Home / 77,056.34-115,584.22-20,896.30

Finding the Fourth Proportional to 77,056.34, 115,584.22 and 20,896.30

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Solution

The fourth proportional to 77,056.34, 115,584.22 and 20,896.30 is: 31,344.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,056.34 : 115,584.22 = 20,896.30 : x
  2. Step 2: Convert to fraction form
    77,056.34/115,584.22 = 20,896.30/x
  3. Step 3: Cross multiply
    77,056.34x = 115,584.22 × 20,896.30
  4. Step 4: Simplify right side
    77,056.34x = 2,415,282,589.44
  5. Step 5: Solve for x
    x = 2,415,282,589.44/77,056.34
  6. Step 6: Final answer
    x = 31,344.37

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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.