Finding the Fourth Proportional to 77,682.24, 107,192.76 and 43,689.99
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Solution
The fourth proportional to 77,682.24, 107,192.76 and 43,689.99 is: 60,287.28
Step by Step Solution
- Step 1: Write the proportion equation
77,682.24 : 107,192.76 = 43,689.99 : x - Step 2: Convert to fraction form
77,682.24/107,192.76 = 43,689.99/x - Step 3: Cross multiply
77,682.24x = 107,192.76 × 43,689.99 - Step 4: Simplify right side
77,682.24x = 4,683,250,612.47 - Step 5: Solve for x
x = 4,683,250,612.47/77,682.24 - Step 6: Final answer
x = 60,287.28
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.