Home / 54,064.40-81,107.80-18,528.41

Finding the Fourth Proportional to 54,064.40, 81,107.80 and 18,528.41

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Solution

The fourth proportional to 54,064.40, 81,107.80 and 18,528.41 is: 27,796.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,064.40 : 81,107.80 = 18,528.41 : x
  2. Step 2: Convert to fraction form
    54,064.40/81,107.80 = 18,528.41/x
  3. Step 3: Cross multiply
    54,064.40x = 81,107.80 × 18,528.41
  4. Step 4: Simplify right side
    54,064.40x = 1,502,798,729.05
  5. Step 5: Solve for x
    x = 1,502,798,729.05/54,064.40
  6. Step 6: Final answer
    x = 27,796.46

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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.