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Finding the Fourth Proportional to 74,662.09, 103,033.70 and 41,128.09

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Solution

The fourth proportional to 74,662.09, 103,033.70 and 41,128.09 is: 56,756.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,662.09 : 103,033.70 = 41,128.09 : x
  2. Step 2: Convert to fraction form
    74,662.09/103,033.70 = 41,128.09/x
  3. Step 3: Cross multiply
    74,662.09x = 103,033.70 × 41,128.09
  4. Step 4: Simplify right side
    74,662.09x = 4,237,579,286.63
  5. Step 5: Solve for x
    x = 4,237,579,286.63/74,662.09
  6. Step 6: Final answer
    x = 56,756.77

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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.