Home / 51,289.68-76,928.16-13,852.80

Finding the Fourth Proportional to 51,289.68, 76,928.16 and 13,852.80

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Solution

The fourth proportional to 51,289.68, 76,928.16 and 13,852.80 is: 20,777.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,289.68 : 76,928.16 = 13,852.80 : x
  2. Step 2: Convert to fraction form
    51,289.68/76,928.16 = 13,852.80/x
  3. Step 3: Cross multiply
    51,289.68x = 76,928.16 × 13,852.80
  4. Step 4: Simplify right side
    51,289.68x = 1,065,670,414.85
  5. Step 5: Solve for x
    x = 1,065,670,414.85/51,289.68
  6. Step 6: Final answer
    x = 20,777.48

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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.