Home / 54,055.42-81,087.04-20,775.52

Finding the Fourth Proportional to 54,055.42, 81,087.04 and 20,775.52

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Solution

The fourth proportional to 54,055.42, 81,087.04 and 20,775.52 is: 31,164.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,055.42 : 81,087.04 = 20,775.52 : x
  2. Step 2: Convert to fraction form
    54,055.42/81,087.04 = 20,775.52/x
  3. Step 3: Cross multiply
    54,055.42x = 81,087.04 × 20,775.52
  4. Step 4: Simplify right side
    54,055.42x = 1,684,625,548.59
  5. Step 5: Solve for x
    x = 1,684,625,548.59/54,055.42
  6. Step 6: Final answer
    x = 31,164.79

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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.