Home / 57,715.37-79,469.54-49,198.40

Finding the Fourth Proportional to 57,715.37, 79,469.54 and 49,198.40

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Solution

The fourth proportional to 57,715.37, 79,469.54 and 49,198.40 is: 67,742.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,715.37 : 79,469.54 = 49,198.40 : x
  2. Step 2: Convert to fraction form
    57,715.37/79,469.54 = 49,198.40/x
  3. Step 3: Cross multiply
    57,715.37x = 79,469.54 × 49,198.40
  4. Step 4: Simplify right side
    57,715.37x = 3,909,773,573.40
  5. Step 5: Solve for x
    x = 3,909,773,573.40/57,715.37
  6. Step 6: Final answer
    x = 67,742.33

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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.