Finding the Fourth Proportional to 72,803.84, 100,473.60 and 40,974.08
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Solution
The fourth proportional to 72,803.84, 100,473.60 and 40,974.08 is: 56,546.65
Step by Step Solution
- Step 1: Write the proportion equation
72,803.84 : 100,473.60 = 40,974.08 : x - Step 2: Convert to fraction form
72,803.84/100,473.60 = 40,974.08/x - Step 3: Cross multiply
72,803.84x = 100,473.60 × 40,974.08 - Step 4: Simplify right side
72,803.84x = 4,116,813,324.29 - Step 5: Solve for x
x = 4,116,813,324.29/72,803.84 - Step 6: Final answer
x = 56,546.65
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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.