Finding the Fourth Proportional to 74,134.14, 102,304.93 and 40,142.66
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Solution
The fourth proportional to 74,134.14, 102,304.93 and 40,142.66 is: 55,396.77
Step by Step Solution
- Step 1: Write the proportion equation
74,134.14 : 102,304.93 = 40,142.66 : x - Step 2: Convert to fraction form
74,134.14/102,304.93 = 40,142.66/x - Step 3: Cross multiply
74,134.14x = 102,304.93 × 40,142.66 - Step 4: Simplify right side
74,134.14x = 4,106,792,021.31 - Step 5: Solve for x
x = 4,106,792,021.31/74,134.14 - Step 6: Final answer
x = 55,396.77
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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.