Finding the Fourth Proportional to 88,386.48, 121,975.57 and 48,102.47
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Solution
The fourth proportional to 88,386.48, 121,975.57 and 48,102.47 is: 66,382.62
Step by Step Solution
- Step 1: Write the proportion equation
88,386.48 : 121,975.57 = 48,102.47 : x - Step 2: Convert to fraction form
88,386.48/121,975.57 = 48,102.47/x - Step 3: Cross multiply
88,386.48x = 121,975.57 × 48,102.47 - Step 4: Simplify right side
88,386.48x = 5,867,326,196.66 - Step 5: Solve for x
x = 5,867,326,196.66/88,386.48 - Step 6: Final answer
x = 66,382.62
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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.