Home / 80,583.76-120,833.93-36,172.27

Finding the Fourth Proportional to 80,583.76, 120,833.93 and 36,172.27

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Solution

The fourth proportional to 80,583.76, 120,833.93 and 36,172.27 is: 54,239.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,583.76 : 120,833.93 = 36,172.27 : x
  2. Step 2: Convert to fraction form
    80,583.76/120,833.93 = 36,172.27/x
  3. Step 3: Cross multiply
    80,583.76x = 120,833.93 × 36,172.27
  4. Step 4: Simplify right side
    80,583.76x = 4,370,837,579.13
  5. Step 5: Solve for x
    x = 4,370,837,579.13/80,583.76
  6. Step 6: Final answer
    x = 54,239.68

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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.