Finding the Fourth Proportional to 98,427.36, 135,829.44 and 53,715.36
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Solution
The fourth proportional to 98,427.36, 135,829.44 and 53,715.36 is: 74,127.02
Step by Step Solution
- Step 1: Write the proportion equation
98,427.36 : 135,829.44 = 53,715.36 : x - Step 2: Convert to fraction form
98,427.36/135,829.44 = 53,715.36/x - Step 3: Cross multiply
98,427.36x = 135,829.44 × 53,715.36 - Step 4: Simplify right side
98,427.36x = 7,296,127,268.20 - Step 5: Solve for x
x = 7,296,127,268.20/98,427.36 - Step 6: Final answer
x = 74,127.02
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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.