Finding the Fourth Proportional to 99,039.35, 136,670.61 and 58,728.99
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Solution
The fourth proportional to 99,039.35, 136,670.61 and 58,728.99 is: 81,043.81
Step by Step Solution
- Step 1: Write the proportion equation
99,039.35 : 136,670.61 = 58,728.99 : x - Step 2: Convert to fraction form
99,039.35/136,670.61 = 58,728.99/x - Step 3: Cross multiply
99,039.35x = 136,670.61 × 58,728.99 - Step 4: Simplify right side
99,039.35x = 8,026,526,887.98 - Step 5: Solve for x
x = 8,026,526,887.98/99,039.35 - Step 6: Final answer
x = 81,043.81
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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.