Finding the Fourth Proportional to 74,331.59, 102,577.67 and 40,340.08
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Solution
The fourth proportional to 74,331.59, 102,577.67 and 40,340.08 is: 55,669.35
Step by Step Solution
- Step 1: Write the proportion equation
74,331.59 : 102,577.67 = 40,340.08 : x - Step 2: Convert to fraction form
74,331.59/102,577.67 = 40,340.08/x - Step 3: Cross multiply
74,331.59x = 102,577.67 × 40,340.08 - Step 4: Simplify right side
74,331.59x = 4,137,991,666.85 - Step 5: Solve for x
x = 4,137,991,666.85/74,331.59 - Step 6: Final answer
x = 55,669.35
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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.