Home / 43,620.80-65,431.20-40,996.40

Finding the Fourth Proportional to 43,620.80, 65,431.20 and 40,996.40

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Solution

The fourth proportional to 43,620.80, 65,431.20 and 40,996.40 is: 61,494.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,620.80 : 65,431.20 = 40,996.40 : x
  2. Step 2: Convert to fraction form
    43,620.80/65,431.20 = 40,996.40/x
  3. Step 3: Cross multiply
    43,620.80x = 65,431.20 × 40,996.40
  4. Step 4: Simplify right side
    43,620.80x = 2,682,443,647.68
  5. Step 5: Solve for x
    x = 2,682,443,647.68/43,620.80
  6. Step 6: Final answer
    x = 61,494.60

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1.5x scale

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.