Home / 54,523.59-81,778.19-18,977.28

Finding the Fourth Proportional to 54,523.59, 81,778.19 and 18,977.28

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Solution

The fourth proportional to 54,523.59, 81,778.19 and 18,977.28 is: 28,463.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,523.59 : 81,778.19 = 18,977.28 : x
  2. Step 2: Convert to fraction form
    54,523.59/81,778.19 = 18,977.28/x
  3. Step 3: Cross multiply
    54,523.59x = 81,778.19 × 18,977.28
  4. Step 4: Simplify right side
    54,523.59x = 1,551,927,514.64
  5. Step 5: Solve for x
    x = 1,551,927,514.64/54,523.59
  6. Step 6: Final answer
    x = 28,463.41

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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.