Home / 47,739.12-65,819.43-34,143.54

Finding the Fourth Proportional to 47,739.12, 65,819.43 and 34,143.54

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Solution

The fourth proportional to 47,739.12, 65,819.43 and 34,143.54 is: 47,074.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,739.12 : 65,819.43 = 34,143.54 : x
  2. Step 2: Convert to fraction form
    47,739.12/65,819.43 = 34,143.54/x
  3. Step 3: Cross multiply
    47,739.12x = 65,819.43 × 34,143.54
  4. Step 4: Simplify right side
    47,739.12x = 2,247,308,340.98
  5. Step 5: Solve for x
    x = 2,247,308,340.98/47,739.12
  6. Step 6: Final answer
    x = 47,074.78

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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.