Finding the Fourth Proportional to 76,712.94, 115,032.49 and 32,315.49
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Solution
The fourth proportional to 76,712.94, 115,032.49 and 32,315.49 is: 48,457.68
Step by Step Solution
- Step 1: Write the proportion equation
76,712.94 : 115,032.49 = 32,315.49 : x - Step 2: Convert to fraction form
76,712.94/115,032.49 = 32,315.49/x - Step 3: Cross multiply
76,712.94x = 115,032.49 × 32,315.49 - Step 4: Simplify right side
76,712.94x = 3,717,331,199.48 - Step 5: Solve for x
x = 3,717,331,199.48/76,712.94 - Step 6: Final answer
x = 48,457.68
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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.