Finding the Fourth Proportional to 86,117.52, 129,190.68 and 26,941.44
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Solution
The fourth proportional to 86,117.52, 129,190.68 and 26,941.44 is: 40,416.66
Step by Step Solution
- Step 1: Write the proportion equation
86,117.52 : 129,190.68 = 26,941.44 : x - Step 2: Convert to fraction form
86,117.52/129,190.68 = 26,941.44/x - Step 3: Cross multiply
86,117.52x = 129,190.68 × 26,941.44 - Step 4: Simplify right side
86,117.52x = 3,480,582,953.78 - Step 5: Solve for x
x = 3,480,582,953.78/86,117.52 - Step 6: Final answer
x = 40,416.66
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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.