Finding the Fourth Proportional to 88,355.48, 121,928.74 and 48,070.20
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Solution
The fourth proportional to 88,355.48, 121,928.74 and 48,070.20 is: 66,335.88
Step by Step Solution
- Step 1: Write the proportion equation
88,355.48 : 121,928.74 = 48,070.20 : x - Step 2: Convert to fraction form
88,355.48/121,928.74 = 48,070.20/x - Step 3: Cross multiply
88,355.48x = 121,928.74 × 48,070.20 - Step 4: Simplify right side
88,355.48x = 5,861,138,917.55 - Step 5: Solve for x
x = 5,861,138,917.55/88,355.48 - Step 6: Final answer
x = 66,335.88
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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.