Home / 74,120.44-102,286.26-40,129.22

Finding the Fourth Proportional to 74,120.44, 102,286.26 and 40,129.22

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Solution

The fourth proportional to 74,120.44, 102,286.26 and 40,129.22 is: 55,378.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,120.44 : 102,286.26 = 40,129.22 : x
  2. Step 2: Convert to fraction form
    74,120.44/102,286.26 = 40,129.22/x
  3. Step 3: Cross multiply
    74,120.44x = 102,286.26 × 40,129.22
  4. Step 4: Simplify right side
    74,120.44x = 4,104,667,830.52
  5. Step 5: Solve for x
    x = 4,104,667,830.52/74,120.44
  6. Step 6: Final answer
    x = 55,378.35

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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.