Finding the Fourth Proportional to 97,879.04, 135,082.47 and 54,858.32
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Solution
The fourth proportional to 97,879.04, 135,082.47 and 54,858.32 is: 75,709.75
Step by Step Solution
- Step 1: Write the proportion equation
97,879.04 : 135,082.47 = 54,858.32 : x - Step 2: Convert to fraction form
97,879.04/135,082.47 = 54,858.32/x - Step 3: Cross multiply
97,879.04x = 135,082.47 × 54,858.32 - Step 4: Simplify right side
97,879.04x = 7,410,397,365.65 - Step 5: Solve for x
x = 7,410,397,365.65/97,879.04 - Step 6: Final answer
x = 75,709.75
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1.5x scale
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.