Home / 54,055.86-81,120.69-18,995.52

Finding the Fourth Proportional to 54,055.86, 81,120.69 and 18,995.52

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Solution

The fourth proportional to 54,055.86, 81,120.69 and 18,995.52 is: 28,506.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,055.86 : 81,120.69 = 18,995.52 : x
  2. Step 2: Convert to fraction form
    54,055.86/81,120.69 = 18,995.52/x
  3. Step 3: Cross multiply
    54,055.86x = 81,120.69 × 18,995.52
  4. Step 4: Simplify right side
    54,055.86x = 1,540,929,689.31
  5. Step 5: Solve for x
    x = 1,540,929,689.31/54,055.86
  6. Step 6: Final answer
    x = 28,506.25

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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.