Finding the Fourth Proportional to 99,572.64, 149,387.12 and 29,451.68
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Solution
The fourth proportional to 99,572.64, 149,387.12 and 29,451.68 is: 44,185.85
Step by Step Solution
- Step 1: Write the proportion equation
99,572.64 : 149,387.12 = 29,451.68 : x - Step 2: Convert to fraction form
99,572.64/149,387.12 = 29,451.68/x - Step 3: Cross multiply
99,572.64x = 149,387.12 × 29,451.68 - Step 4: Simplify right side
99,572.64x = 4,399,701,654.36 - Step 5: Solve for x
x = 4,399,701,654.36/99,572.64 - Step 6: Final answer
x = 44,185.85
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.