Home / 51,279.96-76,928.16-21,698.04

Finding the Fourth Proportional to 51,279.96, 76,928.16 and 21,698.04

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Solution

The fourth proportional to 51,279.96, 76,928.16 and 21,698.04 is: 32,550.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,279.96 : 76,928.16 = 21,698.04 : x
  2. Step 2: Convert to fraction form
    51,279.96/76,928.16 = 21,698.04/x
  3. Step 3: Cross multiply
    51,279.96x = 76,928.16 × 21,698.04
  4. Step 4: Simplify right side
    51,279.96x = 1,669,190,292.81
  5. Step 5: Solve for x
    x = 1,669,190,292.81/51,279.96
  6. Step 6: Final answer
    x = 32,550.54

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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.