Home / 54,362.22-81,523.80-18,813.89

Finding the Fourth Proportional to 54,362.22, 81,523.80 and 18,813.89

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Solution

The fourth proportional to 54,362.22, 81,523.80 and 18,813.89 is: 28,214.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,362.22 : 81,523.80 = 18,813.89 : x
  2. Step 2: Convert to fraction form
    54,362.22/81,523.80 = 18,813.89/x
  3. Step 3: Cross multiply
    54,362.22x = 81,523.80 × 18,813.89
  4. Step 4: Simplify right side
    54,362.22x = 1,533,780,009.39
  5. Step 5: Solve for x
    x = 1,533,780,009.39/54,362.22
  6. Step 6: Final answer
    x = 28,214.08

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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.