Finding the Fourth Proportional to 90,671.88, 135,924.42 and 48,580.92
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Solution
The fourth proportional to 90,671.88, 135,924.42 and 48,580.92 is: 72,826.70
Step by Step Solution
- Step 1: Write the proportion equation
90,671.88 : 135,924.42 = 48,580.92 : x - Step 2: Convert to fraction form
90,671.88/135,924.42 = 48,580.92/x - Step 3: Cross multiply
90,671.88x = 135,924.42 × 48,580.92 - Step 4: Simplify right side
90,671.88x = 6,603,333,374.07 - Step 5: Solve for x
x = 6,603,333,374.07/90,671.88 - Step 6: Final answer
x = 72,826.70
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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.