Home / 54,294.36-81,420.48-18,749.22

Finding the Fourth Proportional to 54,294.36, 81,420.48 and 18,749.22

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Solution

The fourth proportional to 54,294.36, 81,420.48 and 18,749.22 is: 28,116.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,294.36 : 81,420.48 = 18,749.22 : x
  2. Step 2: Convert to fraction form
    54,294.36/81,420.48 = 18,749.22/x
  3. Step 3: Cross multiply
    54,294.36x = 81,420.48 × 18,749.22
  4. Step 4: Simplify right side
    54,294.36x = 1,526,570,492.03
  5. Step 5: Solve for x
    x = 1,526,570,492.03/54,294.36
  6. Step 6: Final answer
    x = 28,116.56

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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.