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Finding the Fourth Proportional to 72,998.36, 100,734.67 and 41,170.22

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Solution

The fourth proportional to 72,998.36, 100,734.67 and 41,170.22 is: 56,813.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,998.36 : 100,734.67 = 41,170.22 : x
  2. Step 2: Convert to fraction form
    72,998.36/100,734.67 = 41,170.22/x
  3. Step 3: Cross multiply
    72,998.36x = 100,734.67 × 41,170.22
  4. Step 4: Simplify right side
    72,998.36x = 4,147,268,525.53
  5. Step 5: Solve for x
    x = 4,147,268,525.53/72,998.36
  6. Step 6: Final answer
    x = 56,813.17

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1.5x scale

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.