Finding the Fourth Proportional to 88,436.58, 121,888.71 and 77,035.02
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Solution
The fourth proportional to 88,436.58, 121,888.71 and 77,035.02 is: 106,174.38
Step by Step Solution
- Step 1: Write the proportion equation
88,436.58 : 121,888.71 = 77,035.02 : x - Step 2: Convert to fraction form
88,436.58/121,888.71 = 77,035.02/x - Step 3: Cross multiply
88,436.58x = 121,888.71 × 77,035.02 - Step 4: Simplify right side
88,436.58x = 9,389,699,212.62 - Step 5: Solve for x
x = 9,389,699,212.62/88,436.58 - Step 6: Final answer
x = 106,174.38
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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.