Home / 50,722.05-76,041.86-21,161.91

Finding the Fourth Proportional to 50,722.05, 76,041.86 and 21,161.91

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Solution

The fourth proportional to 50,722.05, 76,041.86 and 21,161.91 is: 31,725.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,722.05 : 76,041.86 = 21,161.91 : x
  2. Step 2: Convert to fraction form
    50,722.05/76,041.86 = 21,161.91/x
  3. Step 3: Cross multiply
    50,722.05x = 76,041.86 × 21,161.91
  4. Step 4: Simplify right side
    50,722.05x = 1,609,190,891.74
  5. Step 5: Solve for x
    x = 1,609,190,891.74/50,722.05
  6. Step 6: Final answer
    x = 31,725.67

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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.