Finding the Fourth Proportional to 74,302.06, 102,537.30 and 40,310.68
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Solution
The fourth proportional to 74,302.06, 102,537.30 and 40,310.68 is: 55,628.99
Step by Step Solution
- Step 1: Write the proportion equation
74,302.06 : 102,537.30 = 40,310.68 : x - Step 2: Convert to fraction form
74,302.06/102,537.30 = 40,310.68/x - Step 3: Cross multiply
74,302.06x = 102,537.30 × 40,310.68 - Step 4: Simplify right side
74,302.06x = 4,133,348,288.36 - Step 5: Solve for x
x = 4,133,348,288.36/74,302.06 - Step 6: Final answer
x = 55,628.99
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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.