Home / 54,293.63-81,420.47-18,745.92

Finding the Fourth Proportional to 54,293.63, 81,420.47 and 18,745.92

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Solution

The fourth proportional to 54,293.63, 81,420.47 and 18,745.92 is: 28,111.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,293.63 : 81,420.47 = 18,745.92 : x
  2. Step 2: Convert to fraction form
    54,293.63/81,420.47 = 18,745.92/x
  3. Step 3: Cross multiply
    54,293.63x = 81,420.47 × 18,745.92
  4. Step 4: Simplify right side
    54,293.63x = 1,526,301,523.25
  5. Step 5: Solve for x
    x = 1,526,301,523.25/54,293.63
  6. Step 6: Final answer
    x = 28,111.98

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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.