Finding the Fourth Proportional to 74,386.08, 102,651.84 and 40,849.92
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Solution
The fourth proportional to 74,386.08, 102,651.84 and 40,849.92 is: 56,372.37
Step by Step Solution
- Step 1: Write the proportion equation
74,386.08 : 102,651.84 = 40,849.92 : x - Step 2: Convert to fraction form
74,386.08/102,651.84 = 40,849.92/x - Step 3: Cross multiply
74,386.08x = 102,651.84 × 40,849.92 - Step 4: Simplify right side
74,386.08x = 4,193,319,451.85 - Step 5: Solve for x
x = 4,193,319,451.85/74,386.08 - Step 6: Final answer
x = 56,372.37
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1.5x scale
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.