Finding the Fourth Proportional to 88,276.42, 121,822.26 and 47,990.26
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Solution
The fourth proportional to 88,276.42, 121,822.26 and 47,990.26 is: 66,226.99
Step by Step Solution
- Step 1: Write the proportion equation
88,276.42 : 121,822.26 = 47,990.26 : x - Step 2: Convert to fraction form
88,276.42/121,822.26 = 47,990.26/x - Step 3: Cross multiply
88,276.42x = 121,822.26 × 47,990.26 - Step 4: Simplify right side
88,276.42x = 5,846,281,931.19 - Step 5: Solve for x
x = 5,846,281,931.19/88,276.42 - Step 6: Final answer
x = 66,226.99
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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.