Finding the Fourth Proportional to 78,124.35, 117,151.97 and 22,724.67
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Solution
The fourth proportional to 78,124.35, 117,151.97 and 22,724.67 is: 34,076.95
Step by Step Solution
- Step 1: Write the proportion equation
78,124.35 : 117,151.97 = 22,724.67 : x - Step 2: Convert to fraction form
78,124.35/117,151.97 = 22,724.67/x - Step 3: Cross multiply
78,124.35x = 117,151.97 × 22,724.67 - Step 4: Simplify right side
78,124.35x = 2,662,239,744.48 - Step 5: Solve for x
x = 2,662,239,744.48/78,124.35 - Step 6: Final answer
x = 34,076.95
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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.