Finding the Fourth Proportional to 74,278.18, 102,504.68 and 40,286.71
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Solution
The fourth proportional to 74,278.18, 102,504.68 and 40,286.71 is: 55,596.09
Step by Step Solution
- Step 1: Write the proportion equation
74,278.18 : 102,504.68 = 40,286.71 : x - Step 2: Convert to fraction form
74,278.18/102,504.68 = 40,286.71/x - Step 3: Cross multiply
74,278.18x = 102,504.68 × 40,286.71 - Step 4: Simplify right side
74,278.18x = 4,129,576,316.80 - Step 5: Solve for x
x = 4,129,576,316.80/74,278.18 - Step 6: Final answer
x = 55,596.09
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1.5x scale
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.