Finding the Fourth Proportional to 98,813.24, 136,361.35 and 53,490.06
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Solution
The fourth proportional to 98,813.24, 136,361.35 and 53,490.06 is: 73,815.78
Step by Step Solution
- Step 1: Write the proportion equation
98,813.24 : 136,361.35 = 53,490.06 : x - Step 2: Convert to fraction form
98,813.24/136,361.35 = 53,490.06/x - Step 3: Cross multiply
98,813.24x = 136,361.35 × 53,490.06 - Step 4: Simplify right side
98,813.24x = 7,293,976,525.73 - Step 5: Solve for x
x = 7,293,976,525.73/98,813.24 - Step 6: Final answer
x = 73,815.78
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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.