Finding the Fourth Proportional to 88,251.06, 121,786.20 and 47,964.84
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Solution
The fourth proportional to 88,251.06, 121,786.20 and 47,964.84 is: 66,191.34
Step by Step Solution
- Step 1: Write the proportion equation
88,251.06 : 121,786.20 = 47,964.84 : x - Step 2: Convert to fraction form
88,251.06/121,786.20 = 47,964.84/x - Step 3: Cross multiply
88,251.06x = 121,786.20 × 47,964.84 - Step 4: Simplify right side
88,251.06x = 5,841,455,597.21 - Step 5: Solve for x
x = 5,841,455,597.21/88,251.06 - Step 6: Final answer
x = 66,191.34
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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.