Finding the Fourth Proportional to 85,917.12, 118,557.72 and 48,184.08
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Solution
The fourth proportional to 85,917.12, 118,557.72 and 48,184.08 is: 66,489.60
Step by Step Solution
- Step 1: Write the proportion equation
85,917.12 : 118,557.72 = 48,184.08 : x - Step 2: Convert to fraction form
85,917.12/118,557.72 = 48,184.08/x - Step 3: Cross multiply
85,917.12x = 118,557.72 × 48,184.08 - Step 4: Simplify right side
85,917.12x = 5,712,594,665.10 - Step 5: Solve for x
x = 5,712,594,665.10/85,917.12 - Step 6: Final answer
x = 66,489.60
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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.