Home / 45,091.64-67,616.94-18,780.68

Finding the Fourth Proportional to 45,091.64, 67,616.94 and 18,780.68

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Solution

The fourth proportional to 45,091.64, 67,616.94 and 18,780.68 is: 28,162.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,091.64 : 67,616.94 = 18,780.68 : x
  2. Step 2: Convert to fraction form
    45,091.64/67,616.94 = 18,780.68/x
  3. Step 3: Cross multiply
    45,091.64x = 67,616.94 × 18,780.68
  4. Step 4: Simplify right side
    45,091.64x = 1,269,892,112.72
  5. Step 5: Solve for x
    x = 1,269,892,112.72/45,091.64
  6. Step 6: Final answer
    x = 28,162.47

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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.