Home / 51,072.95-70,481.21-28,103.07

Finding the Fourth Proportional to 51,072.95, 70,481.21 and 28,103.07

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Solution

The fourth proportional to 51,072.95, 70,481.21 and 28,103.07 is: 38,782.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,072.95 : 70,481.21 = 28,103.07 : x
  2. Step 2: Convert to fraction form
    51,072.95/70,481.21 = 28,103.07/x
  3. Step 3: Cross multiply
    51,072.95x = 70,481.21 × 28,103.07
  4. Step 4: Simplify right side
    51,072.95x = 1,980,738,237.80
  5. Step 5: Solve for x
    x = 1,980,738,237.80/51,072.95
  6. Step 6: Final answer
    x = 38,782.53

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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.