Home / 43,610.20-65,415.30-31,168.60

Finding the Fourth Proportional to 43,610.20, 65,415.30 and 31,168.60

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Solution

The fourth proportional to 43,610.20, 65,415.30 and 31,168.60 is: 46,752.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,610.20 : 65,415.30 = 31,168.60 : x
  2. Step 2: Convert to fraction form
    43,610.20/65,415.30 = 31,168.60/x
  3. Step 3: Cross multiply
    43,610.20x = 65,415.30 × 31,168.60
  4. Step 4: Simplify right side
    43,610.20x = 2,038,903,319.58
  5. Step 5: Solve for x
    x = 2,038,903,319.58/43,610.20
  6. Step 6: Final answer
    x = 46,752.90

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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.