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Finding the Fourth Proportional to 51,051.60, 76,585.80 and 15,982.80

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Solution

The fourth proportional to 51,051.60, 76,585.80 and 15,982.80 is: 23,976.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,051.60 : 76,585.80 = 15,982.80 : x
  2. Step 2: Convert to fraction form
    51,051.60/76,585.80 = 15,982.80/x
  3. Step 3: Cross multiply
    51,051.60x = 76,585.80 × 15,982.80
  4. Step 4: Simplify right side
    51,051.60x = 1,224,055,524.24
  5. Step 5: Solve for x
    x = 1,224,055,524.24/51,051.60
  6. Step 6: Final answer
    x = 23,976.83

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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.