Finding the Fourth Proportional to 74,340.92, 102,587.73 and 40,348.68
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Solution
The fourth proportional to 74,340.92, 102,587.73 and 40,348.68 is: 55,679.69
Step by Step Solution
- Step 1: Write the proportion equation
74,340.92 : 102,587.73 = 40,348.68 : x - Step 2: Convert to fraction form
74,340.92/102,587.73 = 40,348.68/x - Step 3: Cross multiply
74,340.92x = 102,587.73 × 40,348.68 - Step 4: Simplify right side
74,340.92x = 4,139,279,567.19 - Step 5: Solve for x
x = 4,139,279,567.19/74,340.92 - Step 6: Final answer
x = 55,679.69
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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.