Home / 45,087.44-67,637.33-18,786.05

Finding the Fourth Proportional to 45,087.44, 67,637.33 and 18,786.05

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Solution

The fourth proportional to 45,087.44, 67,637.33 and 18,786.05 is: 28,181.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,087.44 : 67,637.33 = 18,786.05 : x
  2. Step 2: Convert to fraction form
    45,087.44/67,637.33 = 18,786.05/x
  3. Step 3: Cross multiply
    45,087.44x = 67,637.33 × 18,786.05
  4. Step 4: Simplify right side
    45,087.44x = 1,270,637,831.13
  5. Step 5: Solve for x
    x = 1,270,637,831.13/45,087.44
  6. Step 6: Final answer
    x = 28,181.64

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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.