Finding the Fourth Proportional to 73,875.13, 110,812.69 and 18,471.13
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Solution
The fourth proportional to 73,875.13, 110,812.69 and 18,471.13 is: 27,706.69
Step by Step Solution
- Step 1: Write the proportion equation
73,875.13 : 110,812.69 = 18,471.13 : x - Step 2: Convert to fraction form
73,875.13/110,812.69 = 18,471.13/x - Step 3: Cross multiply
73,875.13x = 110,812.69 × 18,471.13 - Step 4: Simplify right side
73,875.13x = 2,046,835,602.64 - Step 5: Solve for x
x = 2,046,835,602.64/73,875.13 - Step 6: Final answer
x = 27,706.69
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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.