Finding the Fourth Proportional to 98,905.68, 136,465.44 and 58,628.88
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Solution
The fourth proportional to 98,905.68, 136,465.44 and 58,628.88 is: 80,893.39
Step by Step Solution
- Step 1: Write the proportion equation
98,905.68 : 136,465.44 = 58,628.88 : x - Step 2: Convert to fraction form
98,905.68/136,465.44 = 58,628.88/x - Step 3: Cross multiply
98,905.68x = 136,465.44 × 58,628.88 - Step 4: Simplify right side
98,905.68x = 8,000,815,905.91 - Step 5: Solve for x
x = 8,000,815,905.91/98,905.68 - Step 6: Final answer
x = 80,893.39
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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.