Finding the Fourth Proportional to 99,501.63, 137,305.31 and 56,481.99
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Solution
The fourth proportional to 99,501.63, 137,305.31 and 56,481.99 is: 77,941.20
Step by Step Solution
- Step 1: Write the proportion equation
99,501.63 : 137,305.31 = 56,481.99 : x - Step 2: Convert to fraction form
99,501.63/137,305.31 = 56,481.99/x - Step 3: Cross multiply
99,501.63x = 137,305.31 × 56,481.99 - Step 4: Simplify right side
99,501.63x = 7,755,276,863.96 - Step 5: Solve for x
x = 7,755,276,863.96/99,501.63 - Step 6: Final answer
x = 77,941.20
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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.