Home / 40,327.78-60,485.18-12,625.78

Finding the Fourth Proportional to 40,327.78, 60,485.18 and 12,625.78

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Solution

The fourth proportional to 40,327.78, 60,485.18 and 12,625.78 is: 18,936.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,327.78 : 60,485.18 = 12,625.78 : x
  2. Step 2: Convert to fraction form
    40,327.78/60,485.18 = 12,625.78/x
  3. Step 3: Cross multiply
    40,327.78x = 60,485.18 × 12,625.78
  4. Step 4: Simplify right side
    40,327.78x = 763,672,575.94
  5. Step 5: Solve for x
    x = 763,672,575.94/40,327.78
  6. Step 6: Final answer
    x = 18,936.64

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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.