Finding the Fourth Proportional to 74,341.10, 102,591.02 and 40,349.63
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Solution
The fourth proportional to 74,341.10, 102,591.02 and 40,349.63 is: 55,682.65
Step by Step Solution
- Step 1: Write the proportion equation
74,341.10 : 102,591.02 = 40,349.63 : x - Step 2: Convert to fraction form
74,341.10/102,591.02 = 40,349.63/x - Step 3: Cross multiply
74,341.10x = 102,591.02 × 40,349.63 - Step 4: Simplify right side
74,341.10x = 4,139,509,698.32 - Step 5: Solve for x
x = 4,139,509,698.32/74,341.10 - Step 6: Final answer
x = 55,682.65
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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.