Home / 66,719.90-100,079.94-16,800

Finding the Fourth Proportional to 66,719.90, 100,079.94 and 16,800

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Solution

The fourth proportional to 66,719.90, 100,079.94 and 16,800 is: 25,200.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,719.90 : 100,079.94 = 16,800 : x
  2. Step 2: Convert to fraction form
    66,719.90/100,079.94 = 16,800/x
  3. Step 3: Cross multiply
    66,719.90x = 100,079.94 × 16,800
  4. Step 4: Simplify right side
    66,719.90x = 1,681,342,992
  5. Step 5: Solve for x
    x = 1,681,342,992/66,719.90
  6. Step 6: Final answer
    x = 25,200.02

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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.