Home / 45,379.94-68,069.90-18,725.54

Finding the Fourth Proportional to 45,379.94, 68,069.90 and 18,725.54

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Solution

The fourth proportional to 45,379.94, 68,069.90 and 18,725.54 is: 28,088.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,379.94 : 68,069.90 = 18,725.54 : x
  2. Step 2: Convert to fraction form
    45,379.94/68,069.90 = 18,725.54/x
  3. Step 3: Cross multiply
    45,379.94x = 68,069.90 × 18,725.54
  4. Step 4: Simplify right side
    45,379.94x = 1,274,645,635.25
  5. Step 5: Solve for x
    x = 1,274,645,635.25/45,379.94
  6. Step 6: Final answer
    x = 28,088.31

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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.