Home / 43,418.25-65,127.33-28,519.47

Finding the Fourth Proportional to 43,418.25, 65,127.33 and 28,519.47

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Solution

The fourth proportional to 43,418.25, 65,127.33 and 28,519.47 is: 42,779.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,418.25 : 65,127.33 = 28,519.47 : x
  2. Step 2: Convert to fraction form
    43,418.25/65,127.33 = 28,519.47/x
  3. Step 3: Cross multiply
    43,418.25x = 65,127.33 × 28,519.47
  4. Step 4: Simplify right side
    43,418.25x = 1,857,396,934.12
  5. Step 5: Solve for x
    x = 1,857,396,934.12/43,418.25
  6. Step 6: Final answer
    x = 42,779.18

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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.