Home / 45,811.94-68,719.98-12,531.26

Finding the Fourth Proportional to 45,811.94, 68,719.98 and 12,531.26

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Solution

The fourth proportional to 45,811.94, 68,719.98 and 12,531.26 is: 18,797.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,811.94 : 68,719.98 = 12,531.26 : x
  2. Step 2: Convert to fraction form
    45,811.94/68,719.98 = 12,531.26/x
  3. Step 3: Cross multiply
    45,811.94x = 68,719.98 × 12,531.26
  4. Step 4: Simplify right side
    45,811.94x = 861,147,936.57
  5. Step 5: Solve for x
    x = 861,147,936.57/45,811.94
  6. Step 6: Final answer
    x = 18,797.46

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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.