Finding the Fourth Proportional to 86,998.25, 120,067.21 and 48,764.03
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Solution
The fourth proportional to 86,998.25, 120,067.21 and 48,764.03 is: 67,299.75
Step by Step Solution
- Step 1: Write the proportion equation
86,998.25 : 120,067.21 = 48,764.03 : x - Step 2: Convert to fraction form
86,998.25/120,067.21 = 48,764.03/x - Step 3: Cross multiply
86,998.25x = 120,067.21 × 48,764.03 - Step 4: Simplify right side
86,998.25x = 5,854,960,491.08 - Step 5: Solve for x
x = 5,854,960,491.08/86,998.25 - Step 6: Final answer
x = 67,299.75
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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.