Home / 45,382.80-68,077.50-12,102.73

Finding the Fourth Proportional to 45,382.80, 68,077.50 and 12,102.73

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Solution

The fourth proportional to 45,382.80, 68,077.50 and 12,102.73 is: 18,154.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,382.80 : 68,077.50 = 12,102.73 : x
  2. Step 2: Convert to fraction form
    45,382.80/68,077.50 = 12,102.73/x
  3. Step 3: Cross multiply
    45,382.80x = 68,077.50 × 12,102.73
  4. Step 4: Simplify right side
    45,382.80x = 823,923,601.58
  5. Step 5: Solve for x
    x = 823,923,601.58/45,382.80
  6. Step 6: Final answer
    x = 18,154.98

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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.