Finding the Fourth Proportional to 90,726.59, 136,087.97 and 48,620.99
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Solution
The fourth proportional to 90,726.59, 136,087.97 and 48,620.99 is: 72,930.46
Step by Step Solution
- Step 1: Write the proportion equation
90,726.59 : 136,087.97 = 48,620.99 : x - Step 2: Convert to fraction form
90,726.59/136,087.97 = 48,620.99/x - Step 3: Cross multiply
90,726.59x = 136,087.97 × 48,620.99 - Step 4: Simplify right side
90,726.59x = 6,616,731,585.39 - Step 5: Solve for x
x = 6,616,731,585.39/90,726.59 - Step 6: Final answer
x = 72,930.46
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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.