Finding the Fourth Proportional to 75,461.98, 104,138.15 and 47,184.06
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Solution
The fourth proportional to 75,461.98, 104,138.15 and 47,184.06 is: 65,114.39
Step by Step Solution
- Step 1: Write the proportion equation
75,461.98 : 104,138.15 = 47,184.06 : x - Step 2: Convert to fraction form
75,461.98/104,138.15 = 47,184.06/x - Step 3: Cross multiply
75,461.98x = 104,138.15 × 47,184.06 - Step 4: Simplify right side
75,461.98x = 4,913,660,717.89 - Step 5: Solve for x
x = 4,913,660,717.89/75,461.98 - Step 6: Final answer
x = 65,114.39
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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.