Home / 43,705.70-65,553.51-12,118.10

Finding the Fourth Proportional to 43,705.70, 65,553.51 and 12,118.10

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Solution

The fourth proportional to 43,705.70, 65,553.51 and 12,118.10 is: 18,175.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,705.70 : 65,553.51 = 12,118.10 : x
  2. Step 2: Convert to fraction form
    43,705.70/65,553.51 = 12,118.10/x
  3. Step 3: Cross multiply
    43,705.70x = 65,553.51 × 12,118.10
  4. Step 4: Simplify right side
    43,705.70x = 794,383,989.53
  5. Step 5: Solve for x
    x = 794,383,989.53/43,705.70
  6. Step 6: Final answer
    x = 18,175.75

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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.