Finding the Fourth Proportional to 75,021.84, 112,539.44 and 21,712.96
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Solution
The fourth proportional to 75,021.84, 112,539.44 and 21,712.96 is: 32,571.37
Step by Step Solution
- Step 1: Write the proportion equation
75,021.84 : 112,539.44 = 21,712.96 : x - Step 2: Convert to fraction form
75,021.84/112,539.44 = 21,712.96/x - Step 3: Cross multiply
75,021.84x = 112,539.44 × 21,712.96 - Step 4: Simplify right side
75,021.84x = 2,443,564,359.14 - Step 5: Solve for x
x = 2,443,564,359.14/75,021.84 - Step 6: Final answer
x = 32,571.37
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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.