Home / 45,940.08-68,914.89-12,660.15

Finding the Fourth Proportional to 45,940.08, 68,914.89 and 12,660.15

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Solution

The fourth proportional to 45,940.08, 68,914.89 and 12,660.15 is: 18,991.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,940.08 : 68,914.89 = 12,660.15 : x
  2. Step 2: Convert to fraction form
    45,940.08/68,914.89 = 12,660.15/x
  3. Step 3: Cross multiply
    45,940.08x = 68,914.89 × 12,660.15
  4. Step 4: Simplify right side
    45,940.08x = 872,473,134.71
  5. Step 5: Solve for x
    x = 872,473,134.71/45,940.08
  6. Step 6: Final answer
    x = 18,991.54

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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.