Finding the Fourth Proportional to 91,219.30, 125,832.09 and 53,486.26
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Solution
The fourth proportional to 91,219.30, 125,832.09 and 53,486.26 is: 73,781.40
Step by Step Solution
- Step 1: Write the proportion equation
91,219.30 : 125,832.09 = 53,486.26 : x - Step 2: Convert to fraction form
91,219.30/125,832.09 = 53,486.26/x - Step 3: Cross multiply
91,219.30x = 125,832.09 × 53,486.26 - Step 4: Simplify right side
91,219.30x = 6,730,287,882.08 - Step 5: Solve for x
x = 6,730,287,882.08/91,219.30 - Step 6: Final answer
x = 73,781.40
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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.