Home / 89,739.12-123,840.82-49,454.33

Finding the Fourth Proportional to 89,739.12, 123,840.82 and 49,454.33

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Solution

The fourth proportional to 89,739.12, 123,840.82 and 49,454.33 is: 68,247.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,739.12 : 123,840.82 = 49,454.33 : x
  2. Step 2: Convert to fraction form
    89,739.12/123,840.82 = 49,454.33/x
  3. Step 3: Cross multiply
    89,739.12x = 123,840.82 × 49,454.33
  4. Step 4: Simplify right side
    89,739.12x = 6,124,464,779.75
  5. Step 5: Solve for x
    x = 6,124,464,779.75/89,739.12
  6. Step 6: Final answer
    x = 68,247.44

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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.