Finding the Fourth Proportional to 80,008.10, 110,328.48 and 68,714.99
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Solution
The fourth proportional to 80,008.10, 110,328.48 and 68,714.99 is: 94,755.66
Step by Step Solution
- Step 1: Write the proportion equation
80,008.10 : 110,328.48 = 68,714.99 : x - Step 2: Convert to fraction form
80,008.10/110,328.48 = 68,714.99/x - Step 3: Cross multiply
80,008.10x = 110,328.48 × 68,714.99 - Step 4: Simplify right side
80,008.10x = 7,581,219,848.27 - Step 5: Solve for x
x = 7,581,219,848.27/80,008.10 - Step 6: Final answer
x = 94,755.66
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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.