Home / 45,917.53-68,867.19-12,628.99

Finding the Fourth Proportional to 45,917.53, 68,867.19 and 12,628.99

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Solution

The fourth proportional to 45,917.53, 68,867.19 and 12,628.99 is: 18,940.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,917.53 : 68,867.19 = 12,628.99 : x
  2. Step 2: Convert to fraction form
    45,917.53/68,867.19 = 12,628.99/x
  3. Step 3: Cross multiply
    45,917.53x = 68,867.19 × 12,628.99
  4. Step 4: Simplify right side
    45,917.53x = 869,723,053.84
  5. Step 5: Solve for x
    x = 869,723,053.84/45,917.53
  6. Step 6: Final answer
    x = 18,940.98

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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.