Home / 81,939.62-122,911.86-32,017.70

Finding the Fourth Proportional to 81,939.62, 122,911.86 and 32,017.70

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Solution

The fourth proportional to 81,939.62, 122,911.86 and 32,017.70 is: 48,027.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,939.62 : 122,911.86 = 32,017.70 : x
  2. Step 2: Convert to fraction form
    81,939.62/122,911.86 = 32,017.70/x
  3. Step 3: Cross multiply
    81,939.62x = 122,911.86 × 32,017.70
  4. Step 4: Simplify right side
    81,939.62x = 3,935,355,059.92
  5. Step 5: Solve for x
    x = 3,935,355,059.92/81,939.62
  6. Step 6: Final answer
    x = 48,027.50

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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.