Home / 54,495.19-81,755.88-18,951.31

Finding the Fourth Proportional to 54,495.19, 81,755.88 and 18,951.31

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Solution

The fourth proportional to 54,495.19, 81,755.88 and 18,951.31 is: 28,431.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,495.19 : 81,755.88 = 18,951.31 : x
  2. Step 2: Convert to fraction form
    54,495.19/81,755.88 = 18,951.31/x
  3. Step 3: Cross multiply
    54,495.19x = 81,755.88 × 18,951.31
  4. Step 4: Simplify right side
    54,495.19x = 1,549,381,026.20
  5. Step 5: Solve for x
    x = 1,549,381,026.20/54,495.19
  6. Step 6: Final answer
    x = 28,431.52

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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.