Finding the Fourth Proportional to 88,228.92, 121,756.68 and 47,942.68
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Solution
The fourth proportional to 88,228.92, 121,756.68 and 47,942.68 is: 66,161.32
Step by Step Solution
- Step 1: Write the proportion equation
88,228.92 : 121,756.68 = 47,942.68 : x - Step 2: Convert to fraction form
88,228.92/121,756.68 = 47,942.68/x - Step 3: Cross multiply
88,228.92x = 121,756.68 × 47,942.68 - Step 4: Simplify right side
88,228.92x = 5,837,341,547.10 - Step 5: Solve for x
x = 5,837,341,547.10/88,228.92 - Step 6: Final answer
x = 66,161.32
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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.