Home / 80,285.48-120,346.21-52,261.81

Finding the Fourth Proportional to 80,285.48, 120,346.21 and 52,261.81

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Solution

The fourth proportional to 80,285.48, 120,346.21 and 52,261.81 is: 78,339.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,285.48 : 120,346.21 = 52,261.81 : x
  2. Step 2: Convert to fraction form
    80,285.48/120,346.21 = 52,261.81/x
  3. Step 3: Cross multiply
    80,285.48x = 120,346.21 × 52,261.81
  4. Step 4: Simplify right side
    80,285.48x = 6,289,510,231.73
  5. Step 5: Solve for x
    x = 6,289,510,231.73/80,285.48
  6. Step 6: Final answer
    x = 78,339.33

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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.