Finding the Fourth Proportional to 74,232.62, 102,458.86 and 42,420.08
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Solution
The fourth proportional to 74,232.62, 102,458.86 and 42,420.08 is: 58,549.91
Step by Step Solution
- Step 1: Write the proportion equation
74,232.62 : 102,458.86 = 42,420.08 : x - Step 2: Convert to fraction form
74,232.62/102,458.86 = 42,420.08/x - Step 3: Cross multiply
74,232.62x = 102,458.86 × 42,420.08 - Step 4: Simplify right side
74,232.62x = 4,346,313,037.91 - Step 5: Solve for x
x = 4,346,313,037.91/74,232.62 - Step 6: Final answer
x = 58,549.91
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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.