Finding the Fourth Proportional to 74,544.08, 102,872.76 and 40,554.68
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Solution
The fourth proportional to 74,544.08, 102,872.76 and 40,554.68 is: 55,966.51
Step by Step Solution
- Step 1: Write the proportion equation
74,544.08 : 102,872.76 = 40,554.68 : x - Step 2: Convert to fraction form
74,544.08/102,872.76 = 40,554.68/x - Step 3: Cross multiply
74,544.08x = 102,872.76 × 40,554.68 - Step 4: Simplify right side
74,544.08x = 4,171,971,862.52 - Step 5: Solve for x
x = 4,171,971,862.52/74,544.08 - Step 6: Final answer
x = 55,966.51
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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.