Home / 65,919.75-90,968.70-35,704.36

Finding the Fourth Proportional to 65,919.75, 90,968.70 and 35,704.36

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Solution

The fourth proportional to 65,919.75, 90,968.70 and 35,704.36 is: 49,271.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,919.75 : 90,968.70 = 35,704.36 : x
  2. Step 2: Convert to fraction form
    65,919.75/90,968.70 = 35,704.36/x
  3. Step 3: Cross multiply
    65,919.75x = 90,968.70 × 35,704.36
  4. Step 4: Simplify right side
    65,919.75x = 3,247,979,213.53
  5. Step 5: Solve for x
    x = 3,247,979,213.53/65,919.75
  6. Step 6: Final answer
    x = 49,271.72

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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.