Finding the Fourth Proportional to 74,937.08, 103,409.97 and 40,945.03
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Solution
The fourth proportional to 74,937.08, 103,409.97 and 40,945.03 is: 56,502.39
Step by Step Solution
- Step 1: Write the proportion equation
74,937.08 : 103,409.97 = 40,945.03 : x - Step 2: Convert to fraction form
74,937.08/103,409.97 = 40,945.03/x - Step 3: Cross multiply
74,937.08x = 103,409.97 × 40,945.03 - Step 4: Simplify right side
74,937.08x = 4,234,123,911.88 - Step 5: Solve for x
x = 4,234,123,911.88/74,937.08 - Step 6: Final answer
x = 56,502.39
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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.