Finding the Fourth Proportional to 76,743.06, 115,130.16 and 32,369.96
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Solution
The fourth proportional to 76,743.06, 115,130.16 and 32,369.96 is: 48,561.51
Step by Step Solution
- Step 1: Write the proportion equation
76,743.06 : 115,130.16 = 32,369.96 : x - Step 2: Convert to fraction form
76,743.06/115,130.16 = 32,369.96/x - Step 3: Cross multiply
76,743.06x = 115,130.16 × 32,369.96 - Step 4: Simplify right side
76,743.06x = 3,726,758,673.99 - Step 5: Solve for x
x = 3,726,758,673.99/76,743.06 - Step 6: Final answer
x = 48,561.51
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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.