Home / 51,285.45-76,928.23-13,845.51

Finding the Fourth Proportional to 51,285.45, 76,928.23 and 13,845.51

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Solution

The fourth proportional to 51,285.45, 76,928.23 and 13,845.51 is: 20,768.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,285.45 : 76,928.23 = 13,845.51 : x
  2. Step 2: Convert to fraction form
    51,285.45/76,928.23 = 13,845.51/x
  3. Step 3: Cross multiply
    51,285.45x = 76,928.23 × 13,845.51
  4. Step 4: Simplify right side
    51,285.45x = 1,065,110,378.69
  5. Step 5: Solve for x
    x = 1,065,110,378.69/51,285.45
  6. Step 6: Final answer
    x = 20,768.27

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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.