Home / 43,855.85-65,779.68-12,268.75

Finding the Fourth Proportional to 43,855.85, 65,779.68 and 12,268.75

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Solution

The fourth proportional to 43,855.85, 65,779.68 and 12,268.75 is: 18,401.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,855.85 : 65,779.68 = 12,268.75 : x
  2. Step 2: Convert to fraction form
    43,855.85/65,779.68 = 12,268.75/x
  3. Step 3: Cross multiply
    43,855.85x = 65,779.68 × 12,268.75
  4. Step 4: Simplify right side
    43,855.85x = 807,034,449.00
  5. Step 5: Solve for x
    x = 807,034,449.00/43,855.85
  6. Step 6: Final answer
    x = 18,401.98

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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.