Home / 51,271.63-76,908.66-20,106.88

Finding the Fourth Proportional to 51,271.63, 76,908.66 and 20,106.88

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Solution

The fourth proportional to 51,271.63, 76,908.66 and 20,106.88 is: 30,160.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,271.63 : 76,908.66 = 20,106.88 : x
  2. Step 2: Convert to fraction form
    51,271.63/76,908.66 = 20,106.88/x
  3. Step 3: Cross multiply
    51,271.63x = 76,908.66 × 20,106.88
  4. Step 4: Simplify right side
    51,271.63x = 1,546,392,813.04
  5. Step 5: Solve for x
    x = 1,546,392,813.04/51,271.63
  6. Step 6: Final answer
    x = 30,160.79

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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.