Home / 51,200.85-76,778.73-25,884.78

Finding the Fourth Proportional to 51,200.85, 76,778.73 and 25,884.78

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Solution

The fourth proportional to 51,200.85, 76,778.73 and 25,884.78 is: 38,815.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,200.85 : 76,778.73 = 25,884.78 : x
  2. Step 2: Convert to fraction form
    51,200.85/76,778.73 = 25,884.78/x
  3. Step 3: Cross multiply
    51,200.85x = 76,778.73 × 25,884.78
  4. Step 4: Simplify right side
    51,200.85x = 1,987,400,534.73
  5. Step 5: Solve for x
    x = 1,987,400,534.73/51,200.85
  6. Step 6: Final answer
    x = 38,815.77

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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.