Finding the Fourth Proportional to 81,924.62, 122,885.89 and 44,721.70
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Solution
The fourth proportional to 81,924.62, 122,885.89 and 44,721.70 is: 67,081.99
Step by Step Solution
- Step 1: Write the proportion equation
81,924.62 : 122,885.89 = 44,721.70 : x - Step 2: Convert to fraction form
81,924.62/122,885.89 = 44,721.70/x - Step 3: Cross multiply
81,924.62x = 122,885.89 × 44,721.70 - Step 4: Simplify right side
81,924.62x = 5,495,666,430.59 - Step 5: Solve for x
x = 5,495,666,430.59/81,924.62 - Step 6: Final answer
x = 67,081.99
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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.