Finding the Fourth Proportional to 78,524.73, 108,363.02 and 42,714.99
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Solution
The fourth proportional to 78,524.73, 108,363.02 and 42,714.99 is: 58,946.08
Step by Step Solution
- Step 1: Write the proportion equation
78,524.73 : 108,363.02 = 42,714.99 : x - Step 2: Convert to fraction form
78,524.73/108,363.02 = 42,714.99/x - Step 3: Cross multiply
78,524.73x = 108,363.02 × 42,714.99 - Step 4: Simplify right side
78,524.73x = 4,628,725,102.09 - Step 5: Solve for x
x = 4,628,725,102.09/78,524.73 - Step 6: Final answer
x = 58,946.08
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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.