Finding the Fourth Proportional to 88,930.36, 122,706.92 and 50,689.18
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Solution
The fourth proportional to 88,930.36, 122,706.92 and 50,689.18 is: 69,941.39
Step by Step Solution
- Step 1: Write the proportion equation
88,930.36 : 122,706.92 = 50,689.18 : x - Step 2: Convert to fraction form
88,930.36/122,706.92 = 50,689.18/x - Step 3: Cross multiply
88,930.36x = 122,706.92 × 50,689.18 - Step 4: Simplify right side
88,930.36x = 6,219,913,155.13 - Step 5: Solve for x
x = 6,219,913,155.13/88,930.36 - Step 6: Final answer
x = 69,941.39
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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.