Home / 47,780.10-71,571.60-27,998.70

Finding the Fourth Proportional to 47,780.10, 71,571.60 and 27,998.70

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Solution

The fourth proportional to 47,780.10, 71,571.60 and 27,998.70 is: 41,940.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,780.10 : 71,571.60 = 27,998.70 : x
  2. Step 2: Convert to fraction form
    47,780.10/71,571.60 = 27,998.70/x
  3. Step 3: Cross multiply
    47,780.10x = 71,571.60 × 27,998.70
  4. Step 4: Simplify right side
    47,780.10x = 2,003,911,756.92
  5. Step 5: Solve for x
    x = 2,003,911,756.92/47,780.10
  6. Step 6: Final answer
    x = 41,940.30

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1.5x scale

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.