Finding the Fourth Proportional to 84,897.13, 117,193.96 and 57,307.81
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Solution
The fourth proportional to 84,897.13, 117,193.96 and 57,307.81 is: 79,109.02
Step by Step Solution
- Step 1: Write the proportion equation
84,897.13 : 117,193.96 = 57,307.81 : x - Step 2: Convert to fraction form
84,897.13/117,193.96 = 57,307.81/x - Step 3: Cross multiply
84,897.13x = 117,193.96 × 57,307.81 - Step 4: Simplify right side
84,897.13x = 6,716,129,049.56 - Step 5: Solve for x
x = 6,716,129,049.56/84,897.13 - Step 6: Final answer
x = 79,109.02
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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.