Finding the Fourth Proportional to 90,734.49, 136,087.16 and 28,404.99
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Solution
The fourth proportional to 90,734.49, 136,087.16 and 28,404.99 is: 42,602.92
Step by Step Solution
- Step 1: Write the proportion equation
90,734.49 : 136,087.16 = 28,404.99 : x - Step 2: Convert to fraction form
90,734.49/136,087.16 = 28,404.99/x - Step 3: Cross multiply
90,734.49x = 136,087.16 × 28,404.99 - Step 4: Simplify right side
90,734.49x = 3,865,554,276.90 - Step 5: Solve for x
x = 3,865,554,276.90/90,734.49 - Step 6: Final answer
x = 42,602.92
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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.