Home / 68,389.78-94,393.62-40,104.58

Finding the Fourth Proportional to 68,389.78, 94,393.62 and 40,104.58

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Solution

The fourth proportional to 68,389.78, 94,393.62 and 40,104.58 is: 55,353.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,389.78 : 94,393.62 = 40,104.58 : x
  2. Step 2: Convert to fraction form
    68,389.78/94,393.62 = 40,104.58/x
  3. Step 3: Cross multiply
    68,389.78x = 94,393.62 × 40,104.58
  4. Step 4: Simplify right side
    68,389.78x = 3,785,616,484.78
  5. Step 5: Solve for x
    x = 3,785,616,484.78/68,389.78
  6. Step 6: Final answer
    x = 55,353.54

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1.5x scale

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.