Finding the Fourth Proportional to 77,154.53, 115,781.00 and 32,781.29
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Solution
The fourth proportional to 77,154.53, 115,781.00 and 32,781.29 is: 49,192.84
Step by Step Solution
- Step 1: Write the proportion equation
77,154.53 : 115,781.00 = 32,781.29 : x - Step 2: Convert to fraction form
77,154.53/115,781.00 = 32,781.29/x - Step 3: Cross multiply
77,154.53x = 115,781.00 × 32,781.29 - Step 4: Simplify right side
77,154.53x = 3,795,450,663.04 - Step 5: Solve for x
x = 3,795,450,663.04/77,154.53 - Step 6: Final answer
x = 49,192.84
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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.