Finding the Fourth Proportional to 77,735.30, 107,201.27 and 71,936.51
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Solution
The fourth proportional to 77,735.30, 107,201.27 and 71,936.51 is: 99,204.42
Step by Step Solution
- Step 1: Write the proportion equation
77,735.30 : 107,201.27 = 71,936.51 : x - Step 2: Convert to fraction form
77,735.30/107,201.27 = 71,936.51/x - Step 3: Cross multiply
77,735.30x = 107,201.27 × 71,936.51 - Step 4: Simplify right side
77,735.30x = 7,711,684,875.20 - Step 5: Solve for x
x = 7,711,684,875.20/77,735.30 - Step 6: Final answer
x = 99,204.42
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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.