Home / 45,086.25-67,585.41-18,798.51

Finding the Fourth Proportional to 45,086.25, 67,585.41 and 18,798.51

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Solution

The fourth proportional to 45,086.25, 67,585.41 and 18,798.51 is: 28,179.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,086.25 : 67,585.41 = 18,798.51 : x
  2. Step 2: Convert to fraction form
    45,086.25/67,585.41 = 18,798.51/x
  3. Step 3: Cross multiply
    45,086.25x = 67,585.41 × 18,798.51
  4. Step 4: Simplify right side
    45,086.25x = 1,270,505,005.74
  5. Step 5: Solve for x
    x = 1,270,505,005.74/45,086.25
  6. Step 6: Final answer
    x = 28,179.43

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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.