Home / 84,923.50-117,314.34-68,039.86

Finding the Fourth Proportional to 84,923.50, 117,314.34 and 68,039.86

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Solution

The fourth proportional to 84,923.50, 117,314.34 and 68,039.86 is: 93,991.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,923.50 : 117,314.34 = 68,039.86 : x
  2. Step 2: Convert to fraction form
    84,923.50/117,314.34 = 68,039.86/x
  3. Step 3: Cross multiply
    84,923.50x = 117,314.34 × 68,039.86
  4. Step 4: Simplify right side
    84,923.50x = 7,982,051,269.59
  5. Step 5: Solve for x
    x = 7,982,051,269.59/84,923.50
  6. Step 6: Final answer
    x = 93,991.08

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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.