Finding the Fourth Proportional to 74,160.06, 102,340.84 and 40,169.21
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Solution
The fourth proportional to 74,160.06, 102,340.84 and 40,169.21 is: 55,433.48
Step by Step Solution
- Step 1: Write the proportion equation
74,160.06 : 102,340.84 = 40,169.21 : x - Step 2: Convert to fraction form
74,160.06/102,340.84 = 40,169.21/x - Step 3: Cross multiply
74,160.06x = 102,340.84 × 40,169.21 - Step 4: Simplify right side
74,160.06x = 4,110,950,519.22 - Step 5: Solve for x
x = 4,110,950,519.22/74,160.06 - Step 6: Final answer
x = 55,433.48
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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.