Finding the Fourth Proportional to 74,187.16, 102,340.96 and 48,689.99
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Solution
The fourth proportional to 74,187.16, 102,340.96 and 48,689.99 is: 67,167.69
Step by Step Solution
- Step 1: Write the proportion equation
74,187.16 : 102,340.96 = 48,689.99 : x - Step 2: Convert to fraction form
74,187.16/102,340.96 = 48,689.99/x - Step 3: Cross multiply
74,187.16x = 102,340.96 × 48,689.99 - Step 4: Simplify right side
74,187.16x = 4,982,980,075.54 - Step 5: Solve for x
x = 4,982,980,075.54/74,187.16 - Step 6: Final answer
x = 67,167.69
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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.