Home / 81,449.08-122,186.86-28,847.16

Finding the Fourth Proportional to 81,449.08, 122,186.86 and 28,847.16

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Solution

The fourth proportional to 81,449.08, 122,186.86 and 28,847.16 is: 43,275.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,449.08 : 122,186.86 = 28,847.16 : x
  2. Step 2: Convert to fraction form
    81,449.08/122,186.86 = 28,847.16/x
  3. Step 3: Cross multiply
    81,449.08x = 122,186.86 × 28,847.16
  4. Step 4: Simplify right side
    81,449.08x = 3,524,743,900.32
  5. Step 5: Solve for x
    x = 3,524,743,900.32/81,449.08
  6. Step 6: Final answer
    x = 43,275.43

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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.