Finding the Fourth Proportional to 75,602.79, 104,314.05 and 63,549.09
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Solution
The fourth proportional to 75,602.79, 104,314.05 and 63,549.09 is: 87,682.78
Step by Step Solution
- Step 1: Write the proportion equation
75,602.79 : 104,314.05 = 63,549.09 : x - Step 2: Convert to fraction form
75,602.79/104,314.05 = 63,549.09/x - Step 3: Cross multiply
75,602.79x = 104,314.05 × 63,549.09 - Step 4: Simplify right side
75,602.79x = 6,629,062,951.71 - Step 5: Solve for x
x = 6,629,062,951.71/75,602.79 - Step 6: Final answer
x = 87,682.78
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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.