Finding the Fourth Proportional to 86,656.98, 129,990.08 and 27,497.28
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Solution
The fourth proportional to 86,656.98, 129,990.08 and 27,497.28 is: 41,247.38
Step by Step Solution
- Step 1: Write the proportion equation
86,656.98 : 129,990.08 = 27,497.28 : x - Step 2: Convert to fraction form
86,656.98/129,990.08 = 27,497.28/x - Step 3: Cross multiply
86,656.98x = 129,990.08 × 27,497.28 - Step 4: Simplify right side
86,656.98x = 3,574,373,626.98 - Step 5: Solve for x
x = 3,574,373,626.98/86,656.98 - Step 6: Final answer
x = 41,247.38
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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.