Home / 80,384.03-120,397.88-55,023.03

Finding the Fourth Proportional to 80,384.03, 120,397.88 and 55,023.03

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Solution

The fourth proportional to 80,384.03, 120,397.88 and 55,023.03 is: 82,412.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,384.03 : 120,397.88 = 55,023.03 : x
  2. Step 2: Convert to fraction form
    80,384.03/120,397.88 = 55,023.03/x
  3. Step 3: Cross multiply
    80,384.03x = 120,397.88 × 55,023.03
  4. Step 4: Simplify right side
    80,384.03x = 6,624,656,163.18
  5. Step 5: Solve for x
    x = 6,624,656,163.18/80,384.03
  6. Step 6: Final answer
    x = 82,412.59

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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.