Finding the Fourth Proportional to 88,245.60, 121,778.40 and 47,959.68
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Solution
The fourth proportional to 88,245.60, 121,778.40 and 47,959.68 is: 66,184.07
Step by Step Solution
- Step 1: Write the proportion equation
88,245.60 : 121,778.40 = 47,959.68 : x - Step 2: Convert to fraction form
88,245.60/121,778.40 = 47,959.68/x - Step 3: Cross multiply
88,245.60x = 121,778.40 × 47,959.68 - Step 4: Simplify right side
88,245.60x = 5,840,453,094.91 - Step 5: Solve for x
x = 5,840,453,094.91/88,245.60 - Step 6: Final answer
x = 66,184.07
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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.