Finding the Fourth Proportional to 74,273.62, 102,497.65 and 40,282.10
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Solution
The fourth proportional to 74,273.62, 102,497.65 and 40,282.10 is: 55,589.32
Step by Step Solution
- Step 1: Write the proportion equation
74,273.62 : 102,497.65 = 40,282.10 : x - Step 2: Convert to fraction form
74,273.62/102,497.65 = 40,282.10/x - Step 3: Cross multiply
74,273.62x = 102,497.65 × 40,282.10 - Step 4: Simplify right side
74,273.62x = 4,128,819,973.87 - Step 5: Solve for x
x = 4,128,819,973.87/74,273.62 - Step 6: Final answer
x = 55,589.32
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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.