Finding the Fourth Proportional to 78,125.08, 117,207.06 and 22,721.08
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Solution
The fourth proportional to 78,125.08, 117,207.06 and 22,721.08 is: 34,087.27
Step by Step Solution
- Step 1: Write the proportion equation
78,125.08 : 117,207.06 = 22,721.08 : x - Step 2: Convert to fraction form
78,125.08/117,207.06 = 22,721.08/x - Step 3: Cross multiply
78,125.08x = 117,207.06 × 22,721.08 - Step 4: Simplify right side
78,125.08x = 2,663,070,986.82 - Step 5: Solve for x
x = 2,663,070,986.82/78,125.08 - Step 6: Final answer
x = 34,087.27
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.