Home / 90,138.33-124,379.96-49,846.61

Finding the Fourth Proportional to 90,138.33, 124,379.96 and 49,846.61

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Solution

The fourth proportional to 90,138.33, 124,379.96 and 49,846.61 is: 68,782.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,138.33 : 124,379.96 = 49,846.61 : x
  2. Step 2: Convert to fraction form
    90,138.33/124,379.96 = 49,846.61/x
  3. Step 3: Cross multiply
    90,138.33x = 124,379.96 × 49,846.61
  4. Step 4: Simplify right side
    90,138.33x = 6,199,918,486.80
  5. Step 5: Solve for x
    x = 6,199,918,486.80/90,138.33
  6. Step 6: Final answer
    x = 68,782.26

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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.