Finding the Fourth Proportional to 74,198.96, 102,394.93 and 40,207.44
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Solution
The fourth proportional to 74,198.96, 102,394.93 and 40,207.44 is: 55,486.46
Step by Step Solution
- Step 1: Write the proportion equation
74,198.96 : 102,394.93 = 40,207.44 : x - Step 2: Convert to fraction form
74,198.96/102,394.93 = 40,207.44/x - Step 3: Cross multiply
74,198.96x = 102,394.93 × 40,207.44 - Step 4: Simplify right side
74,198.96x = 4,117,037,903.76 - Step 5: Solve for x
x = 4,117,037,903.76/74,198.96 - Step 6: Final answer
x = 55,486.46
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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.