Finding the Fourth Proportional to 88,916.60, 133,331.70 and 49,431.80
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Solution
The fourth proportional to 88,916.60, 133,331.70 and 49,431.80 is: 74,123.68
Step by Step Solution
- Step 1: Write the proportion equation
88,916.60 : 133,331.70 = 49,431.80 : x - Step 2: Convert to fraction form
88,916.60/133,331.70 = 49,431.80/x - Step 3: Cross multiply
88,916.60x = 133,331.70 × 49,431.80 - Step 4: Simplify right side
88,916.60x = 6,590,825,928.06 - Step 5: Solve for x
x = 6,590,825,928.06/88,916.60 - Step 6: Final answer
x = 74,123.68
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.