Home / 74,408.85-102,684.98-40,418.00

Finding the Fourth Proportional to 74,408.85, 102,684.98 and 40,418.00

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Solution

The fourth proportional to 74,408.85, 102,684.98 and 40,418.00 is: 55,777.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,408.85 : 102,684.98 = 40,418.00 : x
  2. Step 2: Convert to fraction form
    74,408.85/102,684.98 = 40,418.00/x
  3. Step 3: Cross multiply
    74,408.85x = 102,684.98 × 40,418.00
  4. Step 4: Simplify right side
    74,408.85x = 4,150,321,494.33
  5. Step 5: Solve for x
    x = 4,150,321,494.33/74,408.85
  6. Step 6: Final answer
    x = 55,777.26

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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.