Home / 43,540.80-65,138.40-37,761.60

Finding the Fourth Proportional to 43,540.80, 65,138.40 and 37,761.60

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Solution

The fourth proportional to 43,540.80, 65,138.40 and 37,761.60 is: 56,492.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,540.80 : 65,138.40 = 37,761.60 : x
  2. Step 2: Convert to fraction form
    43,540.80/65,138.40 = 37,761.60/x
  3. Step 3: Cross multiply
    43,540.80x = 65,138.40 × 37,761.60
  4. Step 4: Simplify right side
    43,540.80x = 2,459,730,205.44
  5. Step 5: Solve for x
    x = 2,459,730,205.44/43,540.80
  6. Step 6: Final answer
    x = 56,492.54

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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.