Home / 54,507.44-81,783.84-28,218.08

Finding the Fourth Proportional to 54,507.44, 81,783.84 and 28,218.08

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Solution

The fourth proportional to 54,507.44, 81,783.84 and 28,218.08 is: 42,338.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,507.44 : 81,783.84 = 28,218.08 : x
  2. Step 2: Convert to fraction form
    54,507.44/81,783.84 = 28,218.08/x
  3. Step 3: Cross multiply
    54,507.44x = 81,783.84 × 28,218.08
  4. Step 4: Simplify right side
    54,507.44x = 2,307,782,939.83
  5. Step 5: Solve for x
    x = 2,307,782,939.83/54,507.44
  6. Step 6: Final answer
    x = 42,338.86

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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.