Home / 57,065.22-85,589.13-21,999.78

Finding the Fourth Proportional to 57,065.22, 85,589.13 and 21,999.78

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Solution

The fourth proportional to 57,065.22, 85,589.13 and 21,999.78 is: 32,996.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,065.22 : 85,589.13 = 21,999.78 : x
  2. Step 2: Convert to fraction form
    57,065.22/85,589.13 = 21,999.78/x
  3. Step 3: Cross multiply
    57,065.22x = 85,589.13 × 21,999.78
  4. Step 4: Simplify right side
    57,065.22x = 1,882,942,030.39
  5. Step 5: Solve for x
    x = 1,882,942,030.39/57,065.22
  6. Step 6: Final answer
    x = 32,996.32

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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.