Finding the Fourth Proportional to 88,386.34, 121,975.68 and 48,102.70
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Solution
The fourth proportional to 88,386.34, 121,975.68 and 48,102.70 is: 66,383.10
Step by Step Solution
- Step 1: Write the proportion equation
88,386.34 : 121,975.68 = 48,102.70 : x - Step 2: Convert to fraction form
88,386.34/121,975.68 = 48,102.70/x - Step 3: Cross multiply
88,386.34x = 121,975.68 × 48,102.70 - Step 4: Simplify right side
88,386.34x = 5,867,359,542.34 - Step 5: Solve for x
x = 5,867,359,542.34/88,386.34 - Step 6: Final answer
x = 66,383.10
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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.