Finding the Fourth Proportional to 99,242.71, 136,902.49 and 62,879.99
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Solution
The fourth proportional to 99,242.71, 136,902.49 and 62,879.99 is: 86,741.15
Step by Step Solution
- Step 1: Write the proportion equation
99,242.71 : 136,902.49 = 62,879.99 : x - Step 2: Convert to fraction form
99,242.71/136,902.49 = 62,879.99/x - Step 3: Cross multiply
99,242.71x = 136,902.49 × 62,879.99 - Step 4: Simplify right side
99,242.71x = 8,608,426,360.46 - Step 5: Solve for x
x = 8,608,426,360.46/99,242.71 - Step 6: Final answer
x = 86,741.15
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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.