Home / 45,439.54-68,154.43-12,162.95

Finding the Fourth Proportional to 45,439.54, 68,154.43 and 12,162.95

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Solution

The fourth proportional to 45,439.54, 68,154.43 and 12,162.95 is: 18,243.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,439.54 : 68,154.43 = 12,162.95 : x
  2. Step 2: Convert to fraction form
    45,439.54/68,154.43 = 12,162.95/x
  3. Step 3: Cross multiply
    45,439.54x = 68,154.43 × 12,162.95
  4. Step 4: Simplify right side
    45,439.54x = 828,958,924.37
  5. Step 5: Solve for x
    x = 828,958,924.37/45,439.54
  6. Step 6: Final answer
    x = 18,243.12

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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.