Finding the Fourth Proportional to 85,707.35, 128,482.26 and 29,534.09
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Solution
The fourth proportional to 85,707.35, 128,482.26 and 29,534.09 is: 44,273.99
Step by Step Solution
- Step 1: Write the proportion equation
85,707.35 : 128,482.26 = 29,534.09 : x - Step 2: Convert to fraction form
85,707.35/128,482.26 = 29,534.09/x - Step 3: Cross multiply
85,707.35x = 128,482.26 × 29,534.09 - Step 4: Simplify right side
85,707.35x = 3,794,606,630.24 - Step 5: Solve for x
x = 3,794,606,630.24/85,707.35 - Step 6: Final answer
x = 44,273.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.