Finding the Fourth Proportional to 96,897.62, 133,729.80 and 53,881.40
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Solution
The fourth proportional to 96,897.62, 133,729.80 and 53,881.40 is: 74,362.50
Step by Step Solution
- Step 1: Write the proportion equation
96,897.62 : 133,729.80 = 53,881.40 : x - Step 2: Convert to fraction form
96,897.62/133,729.80 = 53,881.40/x - Step 3: Cross multiply
96,897.62x = 133,729.80 × 53,881.40 - Step 4: Simplify right side
96,897.62x = 7,205,548,845.72 - Step 5: Solve for x
x = 7,205,548,845.72/96,897.62 - Step 6: Final answer
x = 74,362.50
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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.