Finding the Fourth Proportional to 75,661.21, 104,408.41 and 41,663.06
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Solution
The fourth proportional to 75,661.21, 104,408.41 and 41,663.06 is: 57,492.78
Step by Step Solution
- Step 1: Write the proportion equation
75,661.21 : 104,408.41 = 41,663.06 : x - Step 2: Convert to fraction form
75,661.21/104,408.41 = 41,663.06/x - Step 3: Cross multiply
75,661.21x = 104,408.41 × 41,663.06 - Step 4: Simplify right side
75,661.21x = 4,349,973,328.29 - Step 5: Solve for x
x = 4,349,973,328.29/75,661.21 - Step 6: Final answer
x = 57,492.78
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.