Finding the Fourth Proportional to 98,435.94, 147,677.40 and 31,876.14
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Solution
The fourth proportional to 98,435.94, 147,677.40 and 31,876.14 is: 47,821.82
Step by Step Solution
- Step 1: Write the proportion equation
98,435.94 : 147,677.40 = 31,876.14 : x - Step 2: Convert to fraction form
98,435.94/147,677.40 = 31,876.14/x - Step 3: Cross multiply
98,435.94x = 147,677.40 × 31,876.14 - Step 4: Simplify right side
98,435.94x = 4,707,385,477.24 - Step 5: Solve for x
x = 4,707,385,477.24/98,435.94 - Step 6: Final answer
x = 47,821.82
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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.