Finding the Fourth Proportional to 81,467.68, 122,209.37 and 25,292.70
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Solution
The fourth proportional to 81,467.68, 122,209.37 and 25,292.70 is: 37,941.50
Step by Step Solution
- Step 1: Write the proportion equation
81,467.68 : 122,209.37 = 25,292.70 : x - Step 2: Convert to fraction form
81,467.68/122,209.37 = 25,292.70/x - Step 3: Cross multiply
81,467.68x = 122,209.37 × 25,292.70 - Step 4: Simplify right side
81,467.68x = 3,091,005,601.79 - Step 5: Solve for x
x = 3,091,005,601.79/81,467.68 - Step 6: Final answer
x = 37,941.50
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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.