Finding the Fourth Proportional to 99,219.42, 136,922.27 and 53,897.09
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Solution
The fourth proportional to 99,219.42, 136,922.27 and 53,897.09 is: 74,377.69
Step by Step Solution
- Step 1: Write the proportion equation
99,219.42 : 136,922.27 = 53,897.09 : x - Step 2: Convert to fraction form
99,219.42/136,922.27 = 53,897.09/x - Step 3: Cross multiply
99,219.42x = 136,922.27 × 53,897.09 - Step 4: Simplify right side
99,219.42x = 7,379,710,955.10 - Step 5: Solve for x
x = 7,379,710,955.10/99,219.42 - Step 6: Final answer
x = 74,377.69
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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.