Finding the Fourth Proportional to 74,331.16, 102,577.07 and 40,339.65
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Solution
The fourth proportional to 74,331.16, 102,577.07 and 40,339.65 is: 55,668.76
Step by Step Solution
- Step 1: Write the proportion equation
74,331.16 : 102,577.07 = 40,339.65 : x - Step 2: Convert to fraction form
74,331.16/102,577.07 = 40,339.65/x - Step 3: Cross multiply
74,331.16x = 102,577.07 × 40,339.65 - Step 4: Simplify right side
74,331.16x = 4,137,922,900.13 - Step 5: Solve for x
x = 4,137,922,900.13/74,331.16 - Step 6: Final answer
x = 55,668.76
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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.