Finding the Fourth Proportional to 86,328.36, 129,492.36 and 27,169.20
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Solution
The fourth proportional to 86,328.36, 129,492.36 and 27,169.20 is: 40,753.74
Step by Step Solution
- Step 1: Write the proportion equation
86,328.36 : 129,492.36 = 27,169.20 : x - Step 2: Convert to fraction form
86,328.36/129,492.36 = 27,169.20/x - Step 3: Cross multiply
86,328.36x = 129,492.36 × 27,169.20 - Step 4: Simplify right side
86,328.36x = 3,518,203,827.31 - Step 5: Solve for x
x = 3,518,203,827.31/86,328.36 - Step 6: Final answer
x = 40,753.74
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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.