Home / 72,857.22-100,540.26-40,591.08

Finding the Fourth Proportional to 72,857.22, 100,540.26 and 40,591.08

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Solution

The fourth proportional to 72,857.22, 100,540.26 and 40,591.08 is: 56,014.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,857.22 : 100,540.26 = 40,591.08 : x
  2. Step 2: Convert to fraction form
    72,857.22/100,540.26 = 40,591.08/x
  3. Step 3: Cross multiply
    72,857.22x = 100,540.26 × 40,591.08
  4. Step 4: Simplify right side
    72,857.22x = 4,081,037,736.88
  5. Step 5: Solve for x
    x = 4,081,037,736.88/72,857.22
  6. Step 6: Final answer
    x = 56,014.18

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Why These Related Problems?

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