Home / 68,784.87-94,924.11-40,103.73

Finding the Fourth Proportional to 68,784.87, 94,924.11 and 40,103.73

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Solution

The fourth proportional to 68,784.87, 94,924.11 and 40,103.73 is: 55,343.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,784.87 : 94,924.11 = 40,103.73 : x
  2. Step 2: Convert to fraction form
    68,784.87/94,924.11 = 40,103.73/x
  3. Step 3: Cross multiply
    68,784.87x = 94,924.11 × 40,103.73
  4. Step 4: Simplify right side
    68,784.87x = 3,806,810,877.93
  5. Step 5: Solve for x
    x = 3,806,810,877.93/68,784.87
  6. Step 6: Final answer
    x = 55,343.72

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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.