Home / 45,211.62-67,790.97-21,168.66

Finding the Fourth Proportional to 45,211.62, 67,790.97 and 21,168.66

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Solution

The fourth proportional to 45,211.62, 67,790.97 and 21,168.66 is: 31,740.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,211.62 : 67,790.97 = 21,168.66 : x
  2. Step 2: Convert to fraction form
    45,211.62/67,790.97 = 21,168.66/x
  3. Step 3: Cross multiply
    45,211.62x = 67,790.97 × 21,168.66
  4. Step 4: Simplify right side
    45,211.62x = 1,435,043,995.00
  5. Step 5: Solve for x
    x = 1,435,043,995.00/45,211.62
  6. Step 6: Final answer
    x = 31,740.60

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1.5x scale

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.