Finding the Fourth Proportional to 74,143.33, 102,317.84 and 40,152.08
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Solution
The fourth proportional to 74,143.33, 102,317.84 and 40,152.08 is: 55,409.89
Step by Step Solution
- Step 1: Write the proportion equation
74,143.33 : 102,317.84 = 40,152.08 : x - Step 2: Convert to fraction form
74,143.33/102,317.84 = 40,152.08/x - Step 3: Cross multiply
74,143.33x = 102,317.84 × 40,152.08 - Step 4: Simplify right side
74,143.33x = 4,108,274,097.11 - Step 5: Solve for x
x = 4,108,274,097.11/74,143.33 - Step 6: Final answer
x = 55,409.89
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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.