Finding the Fourth Proportional to 81,261.09, 121,894.07 and 22,098.02
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Solution
The fourth proportional to 81,261.09, 121,894.07 and 22,098.02 is: 33,147.68
Step by Step Solution
- Step 1: Write the proportion equation
81,261.09 : 121,894.07 = 22,098.02 : x - Step 2: Convert to fraction form
81,261.09/121,894.07 = 22,098.02/x - Step 3: Cross multiply
81,261.09x = 121,894.07 × 22,098.02 - Step 4: Simplify right side
81,261.09x = 2,693,616,876.78 - Step 5: Solve for x
x = 2,693,616,876.78/81,261.09 - Step 6: Final answer
x = 33,147.68
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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.