Finding the Fourth Proportional to 76,922.68, 115,315.44 and 41,403.08
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Solution
The fourth proportional to 76,922.68, 115,315.44 and 41,403.08 is: 62,067.71
Step by Step Solution
- Step 1: Write the proportion equation
76,922.68 : 115,315.44 = 41,403.08 : x - Step 2: Convert to fraction form
76,922.68/115,315.44 = 41,403.08/x - Step 3: Cross multiply
76,922.68x = 115,315.44 × 41,403.08 - Step 4: Simplify right side
76,922.68x = 4,774,414,387.56 - Step 5: Solve for x
x = 4,774,414,387.56/76,922.68 - Step 6: Final answer
x = 62,067.71
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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.