Home / 81,413.04-112,359.96-49,586.56

Finding the Fourth Proportional to 81,413.04, 112,359.96 and 49,586.56

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Solution

The fourth proportional to 81,413.04, 112,359.96 and 49,586.56 is: 68,435.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,413.04 : 112,359.96 = 49,586.56 : x
  2. Step 2: Convert to fraction form
    81,413.04/112,359.96 = 49,586.56/x
  3. Step 3: Cross multiply
    81,413.04x = 112,359.96 × 49,586.56
  4. Step 4: Simplify right side
    81,413.04x = 5,571,543,898.14
  5. Step 5: Solve for x
    x = 5,571,543,898.14/81,413.04
  6. Step 6: Final answer
    x = 68,435.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.