Finding the Fourth Proportional to 80,228.64, 110,714.94 and 48,415.08
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Solution
The fourth proportional to 80,228.64, 110,714.94 and 48,415.08 is: 66,812.46
Step by Step Solution
- Step 1: Write the proportion equation
80,228.64 : 110,714.94 = 48,415.08 : x - Step 2: Convert to fraction form
80,228.64/110,714.94 = 48,415.08/x - Step 3: Cross multiply
80,228.64x = 110,714.94 × 48,415.08 - Step 4: Simplify right side
80,228.64x = 5,360,272,677.30 - Step 5: Solve for x
x = 5,360,272,677.30/80,228.64 - Step 6: Final answer
x = 66,812.46
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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.