Home / 43,457.28-65,185.92-20,080.68

Finding the Fourth Proportional to 43,457.28, 65,185.92 and 20,080.68

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Solution

The fourth proportional to 43,457.28, 65,185.92 and 20,080.68 is: 30,121.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,457.28 : 65,185.92 = 20,080.68 : x
  2. Step 2: Convert to fraction form
    43,457.28/65,185.92 = 20,080.68/x
  3. Step 3: Cross multiply
    43,457.28x = 65,185.92 × 20,080.68
  4. Step 4: Simplify right side
    43,457.28x = 1,308,977,600.03
  5. Step 5: Solve for x
    x = 1,308,977,600.03/43,457.28
  6. Step 6: Final answer
    x = 30,121.02

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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.