Finding the Fourth Proportional to 88,028.08, 121,478.40 and 47,741.68
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Solution
The fourth proportional to 88,028.08, 121,478.40 and 47,741.68 is: 65,883.33
Step by Step Solution
- Step 1: Write the proportion equation
88,028.08 : 121,478.40 = 47,741.68 : x - Step 2: Convert to fraction form
88,028.08/121,478.40 = 47,741.68/x - Step 3: Cross multiply
88,028.08x = 121,478.40 × 47,741.68 - Step 4: Simplify right side
88,028.08x = 5,799,582,899.71 - Step 5: Solve for x
x = 5,799,582,899.71/88,028.08 - Step 6: Final answer
x = 65,883.33
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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.