Finding the Fourth Proportional to 84,701.01, 117,024.69 and 72,087.49
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Solution
The fourth proportional to 84,701.01, 117,024.69 and 72,087.49 is: 99,597.59
Step by Step Solution
- Step 1: Write the proportion equation
84,701.01 : 117,024.69 = 72,087.49 : x - Step 2: Convert to fraction form
84,701.01/117,024.69 = 72,087.49/x - Step 3: Cross multiply
84,701.01x = 117,024.69 × 72,087.49 - Step 4: Simplify right side
84,701.01x = 8,436,016,170.13 - Step 5: Solve for x
x = 8,436,016,170.13/84,701.01 - Step 6: Final answer
x = 99,597.59
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.