Finding the Fourth Proportional to 88,415.70, 132,623.55 and 53,423.70
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Solution
The fourth proportional to 88,415.70, 132,623.55 and 53,423.70 is: 80,135.55
Step by Step Solution
- Step 1: Write the proportion equation
88,415.70 : 132,623.55 = 53,423.70 : x - Step 2: Convert to fraction form
88,415.70/132,623.55 = 53,423.70/x - Step 3: Cross multiply
88,415.70x = 132,623.55 × 53,423.70 - Step 4: Simplify right side
88,415.70x = 7,085,240,748.14 - Step 5: Solve for x
x = 7,085,240,748.14/88,415.70 - Step 6: Final answer
x = 80,135.55
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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.