Home / 43,680.44-65,532-12,518.12

Finding the Fourth Proportional to 43,680.44, 65,532 and 12,518.12

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Solution

The fourth proportional to 43,680.44, 65,532 and 12,518.12 is: 18,780.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,680.44 : 65,532 = 12,518.12 : x
  2. Step 2: Convert to fraction form
    43,680.44/65,532 = 12,518.12/x
  3. Step 3: Cross multiply
    43,680.44x = 65,532 × 12,518.12
  4. Step 4: Simplify right side
    43,680.44x = 820,337,439.84
  5. Step 5: Solve for x
    x = 820,337,439.84/43,680.44
  6. Step 6: Final answer
    x = 18,780.43

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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.