Finding the Fourth Proportional to 77,892.34, 116,838.45 and 18,727.99
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Solution
The fourth proportional to 77,892.34, 116,838.45 and 18,727.99 is: 28,091.96
Step by Step Solution
- Step 1: Write the proportion equation
77,892.34 : 116,838.45 = 18,727.99 : x - Step 2: Convert to fraction form
77,892.34/116,838.45 = 18,727.99/x - Step 3: Cross multiply
77,892.34x = 116,838.45 × 18,727.99 - Step 4: Simplify right side
77,892.34x = 2,188,148,739.02 - Step 5: Solve for x
x = 2,188,148,739.02/77,892.34 - Step 6: Final answer
x = 28,091.96
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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.