Home / 47,180.68-70,771.02-12,120.37

Finding the Fourth Proportional to 47,180.68, 70,771.02 and 12,120.37

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Solution

The fourth proportional to 47,180.68, 70,771.02 and 12,120.37 is: 18,180.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,180.68 : 70,771.02 = 12,120.37 : x
  2. Step 2: Convert to fraction form
    47,180.68/70,771.02 = 12,120.37/x
  3. Step 3: Cross multiply
    47,180.68x = 70,771.02 × 12,120.37
  4. Step 4: Simplify right side
    47,180.68x = 857,770,947.68
  5. Step 5: Solve for x
    x = 857,770,947.68/47,180.68
  6. Step 6: Final answer
    x = 18,180.56

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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.