Home / 68,486.40-94,521.60-40,204.80

Finding the Fourth Proportional to 68,486.40, 94,521.60 and 40,204.80

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Solution

The fourth proportional to 68,486.40, 94,521.60 and 40,204.80 is: 55,488.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,486.40 : 94,521.60 = 40,204.80 : x
  2. Step 2: Convert to fraction form
    68,486.40/94,521.60 = 40,204.80/x
  3. Step 3: Cross multiply
    68,486.40x = 94,521.60 × 40,204.80
  4. Step 4: Simplify right side
    68,486.40x = 3,800,222,023.68
  5. Step 5: Solve for x
    x = 3,800,222,023.68/68,486.40
  6. Step 6: Final answer
    x = 55,488.71

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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.