Home / 68,388.06-94,391.27-40,102.86

Finding the Fourth Proportional to 68,388.06, 94,391.27 and 40,102.86

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Solution

The fourth proportional to 68,388.06, 94,391.27 and 40,102.86 is: 55,351.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,388.06 : 94,391.27 = 40,102.86 : x
  2. Step 2: Convert to fraction form
    68,388.06/94,391.27 = 40,102.86/x
  3. Step 3: Cross multiply
    68,388.06x = 94,391.27 × 40,102.86
  4. Step 4: Simplify right side
    68,388.06x = 3,785,360,415.45
  5. Step 5: Solve for x
    x = 3,785,360,415.45/68,388.06
  6. Step 6: Final answer
    x = 55,351.19

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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.