Home / 68,411.86-94,383.43-40,112.08

Finding the Fourth Proportional to 68,411.86, 94,383.43 and 40,112.08

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Solution

The fourth proportional to 68,411.86, 94,383.43 and 40,112.08 is: 55,340.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,411.86 : 94,383.43 = 40,112.08 : x
  2. Step 2: Convert to fraction form
    68,411.86/94,383.43 = 40,112.08/x
  3. Step 3: Cross multiply
    68,411.86x = 94,383.43 × 40,112.08
  4. Step 4: Simplify right side
    68,411.86x = 3,785,915,694.83
  5. Step 5: Solve for x
    x = 3,785,915,694.83/68,411.86
  6. Step 6: Final answer
    x = 55,340.05

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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.