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Finding the Fourth Proportional to 57,658.08, 79,568 and 31,162.08

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Solution

The fourth proportional to 57,658.08, 79,568 and 31,162.08 is: 43,003.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,658.08 : 79,568 = 31,162.08 : x
  2. Step 2: Convert to fraction form
    57,658.08/79,568 = 31,162.08/x
  3. Step 3: Cross multiply
    57,658.08x = 79,568 × 31,162.08
  4. Step 4: Simplify right side
    57,658.08x = 2,479,504,381.44
  5. Step 5: Solve for x
    x = 2,479,504,381.44/57,658.08
  6. Step 6: Final answer
    x = 43,003.59

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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.