Finding the Fourth Proportional to 74,132.17, 102,302.21 and 40,140.65
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Solution
The fourth proportional to 74,132.17, 102,302.21 and 40,140.65 is: 55,394.00
Step by Step Solution
- Step 1: Write the proportion equation
74,132.17 : 102,302.21 = 40,140.65 : x - Step 2: Convert to fraction form
74,132.17/102,302.21 = 40,140.65/x - Step 3: Cross multiply
74,132.17x = 102,302.21 × 40,140.65 - Step 4: Simplify right side
74,132.17x = 4,106,477,561.94 - Step 5: Solve for x
x = 4,106,477,561.94/74,132.17 - Step 6: Final answer
x = 55,394.00
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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.