Home / 43,810.90-65,739.30-20,125.60

Finding the Fourth Proportional to 43,810.90, 65,739.30 and 20,125.60

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Solution

The fourth proportional to 43,810.90, 65,739.30 and 20,125.60 is: 30,198.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,810.90 : 65,739.30 = 20,125.60 : x
  2. Step 2: Convert to fraction form
    43,810.90/65,739.30 = 20,125.60/x
  3. Step 3: Cross multiply
    43,810.90x = 65,739.30 × 20,125.60
  4. Step 4: Simplify right side
    43,810.90x = 1,323,042,856.08
  5. Step 5: Solve for x
    x = 1,323,042,856.08/43,810.90
  6. Step 6: Final answer
    x = 30,198.94

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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.