Finding the Fourth Proportional to 74,114.87, 102,277.69 and 40,122.54
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Solution
The fourth proportional to 74,114.87, 102,277.69 and 40,122.54 is: 55,368.66
Step by Step Solution
- Step 1: Write the proportion equation
74,114.87 : 102,277.69 = 40,122.54 : x - Step 2: Convert to fraction form
74,114.87/102,277.69 = 40,122.54/x - Step 3: Cross multiply
74,114.87x = 102,277.69 × 40,122.54 - Step 4: Simplify right side
74,114.87x = 4,103,640,607.83 - Step 5: Solve for x
x = 4,103,640,607.83/74,114.87 - Step 6: Final answer
x = 55,368.66
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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.