Finding the Fourth Proportional to 75,125.22, 112,693.68 and 21,818.06
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Solution
The fourth proportional to 75,125.22, 112,693.68 and 21,818.06 is: 32,728.79
Step by Step Solution
- Step 1: Write the proportion equation
75,125.22 : 112,693.68 = 21,818.06 : x - Step 2: Convert to fraction form
75,125.22/112,693.68 = 21,818.06/x - Step 3: Cross multiply
75,125.22x = 112,693.68 × 21,818.06 - Step 4: Simplify right side
75,125.22x = 2,458,757,330.99 - Step 5: Solve for x
x = 2,458,757,330.99/75,125.22 - Step 6: Final answer
x = 32,728.79
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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.