Finding the Fourth Proportional to 85,557.84, 118,070.56 and 47,832.08
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Solution
The fourth proportional to 85,557.84, 118,070.56 and 47,832.08 is: 66,008.68
Step by Step Solution
- Step 1: Write the proportion equation
85,557.84 : 118,070.56 = 47,832.08 : x - Step 2: Convert to fraction form
85,557.84/118,070.56 = 47,832.08/x - Step 3: Cross multiply
85,557.84x = 118,070.56 × 47,832.08 - Step 4: Simplify right side
85,557.84x = 5,647,560,471.56 - Step 5: Solve for x
x = 5,647,560,471.56/85,557.84 - Step 6: Final answer
x = 66,008.68
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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.