Finding the Fourth Proportional to 98,813.44, 136,361.74 and 53,490.50
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Solution
The fourth proportional to 98,813.44, 136,361.74 and 53,490.50 is: 73,816.45
Step by Step Solution
- Step 1: Write the proportion equation
98,813.44 : 136,361.74 = 53,490.50 : x - Step 2: Convert to fraction form
98,813.44/136,361.74 = 53,490.50/x - Step 3: Cross multiply
98,813.44x = 136,361.74 × 53,490.50 - Step 4: Simplify right side
98,813.44x = 7,294,057,653.47 - Step 5: Solve for x
x = 7,294,057,653.47/98,813.44 - Step 6: Final answer
x = 73,816.45
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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.