Home / 43,539.49-65,310.04-12,375.55

Finding the Fourth Proportional to 43,539.49, 65,310.04 and 12,375.55

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Solution

The fourth proportional to 43,539.49, 65,310.04 and 12,375.55 is: 18,563.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,539.49 : 65,310.04 = 12,375.55 : x
  2. Step 2: Convert to fraction form
    43,539.49/65,310.04 = 12,375.55/x
  3. Step 3: Cross multiply
    43,539.49x = 65,310.04 × 12,375.55
  4. Step 4: Simplify right side
    43,539.49x = 808,247,308.03
  5. Step 5: Solve for x
    x = 808,247,308.03/43,539.49
  6. Step 6: Final answer
    x = 18,563.55

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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.