Home / 51,198.78-70,645.72-28,532.80

Finding the Fourth Proportional to 51,198.78, 70,645.72 and 28,532.80

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Solution

The fourth proportional to 51,198.78, 70,645.72 and 28,532.80 is: 39,370.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,198.78 : 70,645.72 = 28,532.80 : x
  2. Step 2: Convert to fraction form
    51,198.78/70,645.72 = 28,532.80/x
  3. Step 3: Cross multiply
    51,198.78x = 70,645.72 × 28,532.80
  4. Step 4: Simplify right side
    51,198.78x = 2,015,720,199.62
  5. Step 5: Solve for x
    x = 2,015,720,199.62/51,198.78
  6. Step 6: Final answer
    x = 39,370.47

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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.