Home / 54,488.34-81,726.30-18,942.84

Finding the Fourth Proportional to 54,488.34, 81,726.30 and 18,942.84

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Solution

The fourth proportional to 54,488.34, 81,726.30 and 18,942.84 is: 28,412.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,488.34 : 81,726.30 = 18,942.84 : x
  2. Step 2: Convert to fraction form
    54,488.34/81,726.30 = 18,942.84/x
  3. Step 3: Cross multiply
    54,488.34x = 81,726.30 × 18,942.84
  4. Step 4: Simplify right side
    54,488.34x = 1,548,128,224.69
  5. Step 5: Solve for x
    x = 1,548,128,224.69/54,488.34
  6. Step 6: Final answer
    x = 28,412.10

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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.