Home / 45,918.27-68,868.33-12,629.74

Finding the Fourth Proportional to 45,918.27, 68,868.33 and 12,629.74

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Solution

The fourth proportional to 45,918.27, 68,868.33 and 12,629.74 is: 18,942.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,918.27 : 68,868.33 = 12,629.74 : x
  2. Step 2: Convert to fraction form
    45,918.27/68,868.33 = 12,629.74/x
  3. Step 3: Cross multiply
    45,918.27x = 68,868.33 × 12,629.74
  4. Step 4: Simplify right side
    45,918.27x = 869,789,102.13
  5. Step 5: Solve for x
    x = 869,789,102.13/45,918.27
  6. Step 6: Final answer
    x = 18,942.11

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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.