Finding the Fourth Proportional to 84,897.12, 117,152.88 and 47,170.08
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Solution
The fourth proportional to 84,897.12, 117,152.88 and 47,170.08 is: 65,091.85
Step by Step Solution
- Step 1: Write the proportion equation
84,897.12 : 117,152.88 = 47,170.08 : x - Step 2: Convert to fraction form
84,897.12/117,152.88 = 47,170.08/x - Step 3: Cross multiply
84,897.12x = 117,152.88 × 47,170.08 - Step 4: Simplify right side
84,897.12x = 5,526,110,721.83 - Step 5: Solve for x
x = 5,526,110,721.83/84,897.12 - Step 6: Final answer
x = 65,091.85
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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.