Finding the Fourth Proportional to 75,604.79, 104,316.81 and 63,551.09
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Solution
The fourth proportional to 75,604.79, 104,316.81 and 63,551.09 is: 87,685.54
Step by Step Solution
- Step 1: Write the proportion equation
75,604.79 : 104,316.81 = 63,551.09 : x - Step 2: Convert to fraction form
75,604.79/104,316.81 = 63,551.09/x - Step 3: Cross multiply
75,604.79x = 104,316.81 × 63,551.09 - Step 4: Simplify right side
75,604.79x = 6,629,446,980.82 - Step 5: Solve for x
x = 6,629,446,980.82/75,604.79 - Step 6: Final answer
x = 87,685.54
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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.