Home / 47,806.24-71,709.62-12,745.78

Finding the Fourth Proportional to 47,806.24, 71,709.62 and 12,745.78

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Solution

The fourth proportional to 47,806.24, 71,709.62 and 12,745.78 is: 19,118.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,806.24 : 71,709.62 = 12,745.78 : x
  2. Step 2: Convert to fraction form
    47,806.24/71,709.62 = 12,745.78/x
  3. Step 3: Cross multiply
    47,806.24x = 71,709.62 × 12,745.78
  4. Step 4: Simplify right side
    47,806.24x = 913,995,040.40
  5. Step 5: Solve for x
    x = 913,995,040.40/47,806.24
  6. Step 6: Final answer
    x = 19,118.74

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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.