Finding the Fourth Proportional to 71,685.78, 98,953.30 and 53,832.44
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Solution
The fourth proportional to 71,685.78, 98,953.30 and 53,832.44 is: 74,308.99
Step by Step Solution
- Step 1: Write the proportion equation
71,685.78 : 98,953.30 = 53,832.44 : x - Step 2: Convert to fraction form
71,685.78/98,953.30 = 53,832.44/x - Step 3: Cross multiply
71,685.78x = 98,953.30 × 53,832.44 - Step 4: Simplify right side
71,685.78x = 5,326,897,585.05 - Step 5: Solve for x
x = 5,326,897,585.05/71,685.78 - Step 6: Final answer
x = 74,308.99
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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.