Home / 65,919.50-98,878.40-16,000

Finding the Fourth Proportional to 65,919.50, 98,878.40 and 16,000

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Solution

The fourth proportional to 65,919.50, 98,878.40 and 16,000 is: 23,999.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,919.50 : 98,878.40 = 16,000 : x
  2. Step 2: Convert to fraction form
    65,919.50/98,878.40 = 16,000/x
  3. Step 3: Cross multiply
    65,919.50x = 98,878.40 × 16,000
  4. Step 4: Simplify right side
    65,919.50x = 1,582,054,400
  5. Step 5: Solve for x
    x = 1,582,054,400/65,919.50
  6. Step 6: Final answer
    x = 23,999.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.