Finding the Fourth Proportional to 98,770.12, 136,306.02 and 54,058.12
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Solution
The fourth proportional to 98,770.12, 136,306.02 and 54,058.12 is: 74,601.99
Step by Step Solution
- Step 1: Write the proportion equation
98,770.12 : 136,306.02 = 54,058.12 : x - Step 2: Convert to fraction form
98,770.12/136,306.02 = 54,058.12/x - Step 3: Cross multiply
98,770.12x = 136,306.02 × 54,058.12 - Step 4: Simplify right side
98,770.12x = 7,368,447,185.88 - Step 5: Solve for x
x = 7,368,447,185.88/98,770.12 - Step 6: Final answer
x = 74,601.99
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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.