Home / 40,743.72-56,121.16-28,786.30

Finding the Fourth Proportional to 40,743.72, 56,121.16 and 28,786.30

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Solution

The fourth proportional to 40,743.72, 56,121.16 and 28,786.30 is: 39,650.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,743.72 : 56,121.16 = 28,786.30 : x
  2. Step 2: Convert to fraction form
    40,743.72/56,121.16 = 28,786.30/x
  3. Step 3: Cross multiply
    40,743.72x = 56,121.16 × 28,786.30
  4. Step 4: Simplify right side
    40,743.72x = 1,615,520,548.11
  5. Step 5: Solve for x
    x = 1,615,520,548.11/40,743.72
  6. Step 6: Final answer
    x = 39,650.79

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.