Home / 74,845.27-103,288.62-40,855.87

Finding the Fourth Proportional to 74,845.27, 103,288.62 and 40,855.87

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Solution

The fourth proportional to 74,845.27, 103,288.62 and 40,855.87 is: 56,382.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,845.27 : 103,288.62 = 40,855.87 : x
  2. Step 2: Convert to fraction form
    74,845.27/103,288.62 = 40,855.87/x
  3. Step 3: Cross multiply
    74,845.27x = 103,288.62 × 40,855.87
  4. Step 4: Simplify right side
    74,845.27x = 4,219,946,431.20
  5. Step 5: Solve for x
    x = 4,219,946,431.20/74,845.27
  6. Step 6: Final answer
    x = 56,382.27

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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.