Home / 66,138.37-91,271.62-35,924.28

Finding the Fourth Proportional to 66,138.37, 91,271.62 and 35,924.28

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Solution

The fourth proportional to 66,138.37, 91,271.62 and 35,924.28 is: 49,575.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,138.37 : 91,271.62 = 35,924.28 : x
  2. Step 2: Convert to fraction form
    66,138.37/91,271.62 = 35,924.28/x
  3. Step 3: Cross multiply
    66,138.37x = 91,271.62 × 35,924.28
  4. Step 4: Simplify right side
    66,138.37x = 3,278,867,143.12
  5. Step 5: Solve for x
    x = 3,278,867,143.12/66,138.37
  6. Step 6: Final answer
    x = 49,575.87

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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.