Finding the Fourth Proportional to 88,363.49, 121,942.16 and 48,077.55
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Solution
The fourth proportional to 88,363.49, 121,942.16 and 48,077.55 is: 66,347.32
Step by Step Solution
- Step 1: Write the proportion equation
88,363.49 : 121,942.16 = 48,077.55 : x - Step 2: Convert to fraction form
88,363.49/121,942.16 = 48,077.55/x - Step 3: Cross multiply
88,363.49x = 121,942.16 × 48,077.55 - Step 4: Simplify right side
88,363.49x = 5,862,680,054.12 - Step 5: Solve for x
x = 5,862,680,054.12/88,363.49 - Step 6: Final answer
x = 66,347.32
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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.