Home / 45,081.14-67,601.19-18,770.18

Finding the Fourth Proportional to 45,081.14, 67,601.19 and 18,770.18

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Solution

The fourth proportional to 45,081.14, 67,601.19 and 18,770.18 is: 28,146.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,081.14 : 67,601.19 = 18,770.18 : x
  2. Step 2: Convert to fraction form
    45,081.14/67,601.19 = 18,770.18/x
  3. Step 3: Cross multiply
    45,081.14x = 67,601.19 × 18,770.18
  4. Step 4: Simplify right side
    45,081.14x = 1,268,886,504.51
  5. Step 5: Solve for x
    x = 1,268,886,504.51/45,081.14
  6. Step 6: Final answer
    x = 28,146.73

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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.