Finding the Fourth Proportional to 98,427.08, 135,829.32 and 53,715.08
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Solution
The fourth proportional to 98,427.08, 135,829.32 and 53,715.08 is: 74,126.78
Step by Step Solution
- Step 1: Write the proportion equation
98,427.08 : 135,829.32 = 53,715.08 : x - Step 2: Convert to fraction form
98,427.08/135,829.32 = 53,715.08/x - Step 3: Cross multiply
98,427.08x = 135,829.32 × 53,715.08 - Step 4: Simplify right side
98,427.08x = 7,296,082,111.00 - Step 5: Solve for x
x = 7,296,082,111.00/98,427.08 - Step 6: Final answer
x = 74,126.78
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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.