Home / 81,976.61-113,152.86-47,993.06

Finding the Fourth Proportional to 81,976.61, 113,152.86 and 47,993.06

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Solution

The fourth proportional to 81,976.61, 113,152.86 and 47,993.06 is: 66,245.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,976.61 : 113,152.86 = 47,993.06 : x
  2. Step 2: Convert to fraction form
    81,976.61/113,152.86 = 47,993.06/x
  3. Step 3: Cross multiply
    81,976.61x = 113,152.86 × 47,993.06
  4. Step 4: Simplify right side
    81,976.61x = 5,430,551,433.39
  5. Step 5: Solve for x
    x = 5,430,551,433.39/81,976.61
  6. Step 6: Final answer
    x = 66,245.14

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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.