Home / 45,943.21-68,917.17-12,662.55

Finding the Fourth Proportional to 45,943.21, 68,917.17 and 12,662.55

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Solution

The fourth proportional to 45,943.21, 68,917.17 and 12,662.55 is: 18,994.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,943.21 : 68,917.17 = 12,662.55 : x
  2. Step 2: Convert to fraction form
    45,943.21/68,917.17 = 12,662.55/x
  3. Step 3: Cross multiply
    45,943.21x = 68,917.17 × 12,662.55
  4. Step 4: Simplify right side
    45,943.21x = 872,667,110.98
  5. Step 5: Solve for x
    x = 872,667,110.98/45,943.21
  6. Step 6: Final answer
    x = 18,994.47

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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.