Finding the Fourth Proportional to 74,579.01, 102,957.12 and 57,544.98
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Solution
The fourth proportional to 74,579.01, 102,957.12 and 57,544.98 is: 79,441.46
Step by Step Solution
- Step 1: Write the proportion equation
74,579.01 : 102,957.12 = 57,544.98 : x - Step 2: Convert to fraction form
74,579.01/102,957.12 = 57,544.98/x - Step 3: Cross multiply
74,579.01x = 102,957.12 × 57,544.98 - Step 4: Simplify right side
74,579.01x = 5,924,665,411.26 - Step 5: Solve for x
x = 5,924,665,411.26/74,579.01 - Step 6: Final answer
x = 79,441.46
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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.