Finding the Fourth Proportional to 98,876.19, 136,448.86 and 53,553.99
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Solution
The fourth proportional to 98,876.19, 136,448.86 and 53,553.99 is: 73,904.35
Step by Step Solution
- Step 1: Write the proportion equation
98,876.19 : 136,448.86 = 53,553.99 : x - Step 2: Convert to fraction form
98,876.19/136,448.86 = 53,553.99/x - Step 3: Cross multiply
98,876.19x = 136,448.86 × 53,553.99 - Step 4: Simplify right side
98,876.19x = 7,307,380,883.95 - Step 5: Solve for x
x = 7,307,380,883.95/98,876.19 - Step 6: Final answer
x = 73,904.35
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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.