Home / 82,355.06-123,579.32-37,981.85

Finding the Fourth Proportional to 82,355.06, 123,579.32 and 37,981.85

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Solution

The fourth proportional to 82,355.06, 123,579.32 and 37,981.85 is: 56,994.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,355.06 : 123,579.32 = 37,981.85 : x
  2. Step 2: Convert to fraction form
    82,355.06/123,579.32 = 37,981.85/x
  3. Step 3: Cross multiply
    82,355.06x = 123,579.32 × 37,981.85
  4. Step 4: Simplify right side
    82,355.06x = 4,693,770,387.54
  5. Step 5: Solve for x
    x = 4,693,770,387.54/82,355.06
  6. Step 6: Final answer
    x = 56,994.32

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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.