Finding the Fourth Proportional to 88,336.38, 121,972.63 and 67,886.05
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Solution
The fourth proportional to 88,336.38, 121,972.63 and 67,886.05 is: 93,735.33
Step by Step Solution
- Step 1: Write the proportion equation
88,336.38 : 121,972.63 = 67,886.05 : x - Step 2: Convert to fraction form
88,336.38/121,972.63 = 67,886.05/x - Step 3: Cross multiply
88,336.38x = 121,972.63 × 67,886.05 - Step 4: Simplify right side
88,336.38x = 8,280,240,296.13 - Step 5: Solve for x
x = 8,280,240,296.13/88,336.38 - Step 6: Final answer
x = 93,735.33
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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.