Finding the Fourth Proportional to 81,192.08, 121,864.05 and 41,239.64
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Solution
The fourth proportional to 81,192.08, 121,864.05 and 41,239.64 is: 61,898.02
Step by Step Solution
- Step 1: Write the proportion equation
81,192.08 : 121,864.05 = 41,239.64 : x - Step 2: Convert to fraction form
81,192.08/121,864.05 = 41,239.64/x - Step 3: Cross multiply
81,192.08x = 121,864.05 × 41,239.64 - Step 4: Simplify right side
81,192.08x = 5,025,628,941.62 - Step 5: Solve for x
x = 5,025,628,941.62/81,192.08 - Step 6: Final answer
x = 61,898.02
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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.