Finding the Fourth Proportional to 81,113.42, 121,673.48 and 27,841.99
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Solution
The fourth proportional to 81,113.42, 121,673.48 and 27,841.99 is: 41,764.13
Step by Step Solution
- Step 1: Write the proportion equation
81,113.42 : 121,673.48 = 27,841.99 : x - Step 2: Convert to fraction form
81,113.42/121,673.48 = 27,841.99/x - Step 3: Cross multiply
81,113.42x = 121,673.48 × 27,841.99 - Step 4: Simplify right side
81,113.42x = 3,387,631,813.43 - Step 5: Solve for x
x = 3,387,631,813.43/81,113.42 - Step 6: Final answer
x = 41,764.13
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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.