Finding the Fourth Proportional to 75,322.12, 112,986.12 and 22,731.62
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Solution
The fourth proportional to 75,322.12, 112,986.12 and 22,731.62 is: 34,098.32
Step by Step Solution
- Step 1: Write the proportion equation
75,322.12 : 112,986.12 = 22,731.62 : x - Step 2: Convert to fraction form
75,322.12/112,986.12 = 22,731.62/x - Step 3: Cross multiply
75,322.12x = 112,986.12 × 22,731.62 - Step 4: Simplify right side
75,322.12x = 2,568,357,545.11 - Step 5: Solve for x
x = 2,568,357,545.11/75,322.12 - Step 6: Final answer
x = 34,098.32
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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.