Home / 57,289.56-85,704.60-47,448

Finding the Fourth Proportional to 57,289.56, 85,704.60 and 47,448

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Solution

The fourth proportional to 57,289.56, 85,704.60 and 47,448 is: 70,981.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,289.56 : 85,704.60 = 47,448 : x
  2. Step 2: Convert to fraction form
    57,289.56/85,704.60 = 47,448/x
  3. Step 3: Cross multiply
    57,289.56x = 85,704.60 × 47,448
  4. Step 4: Simplify right side
    57,289.56x = 4,066,511,860.80
  5. Step 5: Solve for x
    x = 4,066,511,860.80/57,289.56
  6. Step 6: Final answer
    x = 70,981.73

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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.