Finding the Fourth Proportional to 97,845.36, 135,022.81 and 55,403.99
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Solution
The fourth proportional to 97,845.36, 135,022.81 and 55,403.99 is: 76,455.36
Step by Step Solution
- Step 1: Write the proportion equation
97,845.36 : 135,022.81 = 55,403.99 : x - Step 2: Convert to fraction form
97,845.36/135,022.81 = 55,403.99/x - Step 3: Cross multiply
97,845.36x = 135,022.81 × 55,403.99 - Step 4: Simplify right side
97,845.36x = 7,480,802,415.01 - Step 5: Solve for x
x = 7,480,802,415.01/97,845.36 - Step 6: Final answer
x = 76,455.36
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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.