Home / 51,276.75-76,951.58-20,112

Finding the Fourth Proportional to 51,276.75, 76,951.58 and 20,112

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Solution

The fourth proportional to 51,276.75, 76,951.58 and 20,112 is: 30,182.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,276.75 : 76,951.58 = 20,112 : x
  2. Step 2: Convert to fraction form
    51,276.75/76,951.58 = 20,112/x
  3. Step 3: Cross multiply
    51,276.75x = 76,951.58 × 20,112
  4. Step 4: Simplify right side
    51,276.75x = 1,547,650,076.40
  5. Step 5: Solve for x
    x = 1,547,650,076.40/51,276.75
  6. Step 6: Final answer
    x = 30,182.30

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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.