Finding the Fourth Proportional to 98,869.53, 136,440.36 and 53,548.05
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Solution
The fourth proportional to 98,869.53, 136,440.36 and 53,548.05 is: 73,896.53
Step by Step Solution
- Step 1: Write the proportion equation
98,869.53 : 136,440.36 = 53,548.05 : x - Step 2: Convert to fraction form
98,869.53/136,440.36 = 53,548.05/x - Step 3: Cross multiply
98,869.53x = 136,440.36 × 53,548.05 - Step 4: Simplify right side
98,869.53x = 7,306,115,219.30 - Step 5: Solve for x
x = 7,306,115,219.30/98,869.53 - Step 6: Final answer
x = 73,896.53
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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.