Home / 43,828.80-65,743.20-39,163.20

Finding the Fourth Proportional to 43,828.80, 65,743.20 and 39,163.20

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Solution

The fourth proportional to 43,828.80, 65,743.20 and 39,163.20 is: 58,744.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,828.80 : 65,743.20 = 39,163.20 : x
  2. Step 2: Convert to fraction form
    43,828.80/65,743.20 = 39,163.20/x
  3. Step 3: Cross multiply
    43,828.80x = 65,743.20 × 39,163.20
  4. Step 4: Simplify right side
    43,828.80x = 2,574,714,090.24
  5. Step 5: Solve for x
    x = 2,574,714,090.24/43,828.80
  6. Step 6: Final answer
    x = 58,744.80

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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.