Home / 89,638.40-123,699.96-49,351.31

Finding the Fourth Proportional to 89,638.40, 123,699.96 and 49,351.31

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Solution

The fourth proportional to 89,638.40, 123,699.96 and 49,351.31 is: 68,104.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,638.40 : 123,699.96 = 49,351.31 : x
  2. Step 2: Convert to fraction form
    89,638.40/123,699.96 = 49,351.31/x
  3. Step 3: Cross multiply
    89,638.40x = 123,699.96 × 49,351.31
  4. Step 4: Simplify right side
    89,638.40x = 6,104,755,072.95
  5. Step 5: Solve for x
    x = 6,104,755,072.95/89,638.40
  6. Step 6: Final answer
    x = 68,104.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.