Finding the Fourth Proportional to 88,432.65, 122,039.60 and 48,147.09
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Solution
The fourth proportional to 88,432.65, 122,039.60 and 48,147.09 is: 66,444.37
Step by Step Solution
- Step 1: Write the proportion equation
88,432.65 : 122,039.60 = 48,147.09 : x - Step 2: Convert to fraction form
88,432.65/122,039.60 = 48,147.09/x - Step 3: Cross multiply
88,432.65x = 122,039.60 × 48,147.09 - Step 4: Simplify right side
88,432.65x = 5,875,851,364.03 - Step 5: Solve for x
x = 5,875,851,364.03/88,432.65 - Step 6: Final answer
x = 66,444.37
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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.