Finding the Fourth Proportional to 98,314.38, 135,658.11 and 55,293.75
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Solution
The fourth proportional to 98,314.38, 135,658.11 and 55,293.75 is: 76,296.53
Step by Step Solution
- Step 1: Write the proportion equation
98,314.38 : 135,658.11 = 55,293.75 : x - Step 2: Convert to fraction form
98,314.38/135,658.11 = 55,293.75/x - Step 3: Cross multiply
98,314.38x = 135,658.11 × 55,293.75 - Step 4: Simplify right side
98,314.38x = 7,501,045,619.81 - Step 5: Solve for x
x = 7,501,045,619.81/98,314.38 - Step 6: Final answer
x = 76,296.53
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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.