Finding the Fourth Proportional to 74,062.32, 102,202.08 and 40,521.84
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Solution
The fourth proportional to 74,062.32, 102,202.08 and 40,521.84 is: 55,917.99
Step by Step Solution
- Step 1: Write the proportion equation
74,062.32 : 102,202.08 = 40,521.84 : x - Step 2: Convert to fraction form
74,062.32/102,202.08 = 40,521.84/x - Step 3: Cross multiply
74,062.32x = 102,202.08 × 40,521.84 - Step 4: Simplify right side
74,062.32x = 4,141,416,333.43 - Step 5: Solve for x
x = 4,141,416,333.43/74,062.32 - Step 6: Final answer
x = 55,917.99
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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.