Finding the Fourth Proportional to 86,407.15, 129,598.42 and 27,235.13
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Solution
The fourth proportional to 86,407.15, 129,598.42 and 27,235.13 is: 40,848.82
Step by Step Solution
- Step 1: Write the proportion equation
86,407.15 : 129,598.42 = 27,235.13 : x - Step 2: Convert to fraction form
86,407.15/129,598.42 = 27,235.13/x - Step 3: Cross multiply
86,407.15x = 129,598.42 × 27,235.13 - Step 4: Simplify right side
86,407.15x = 3,529,629,816.49 - Step 5: Solve for x
x = 3,529,629,816.49/86,407.15 - Step 6: Final answer
x = 40,848.82
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1.5x scale
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.