Finding the Fourth Proportional to 81,982.98, 122,988.47 and 37,613.52
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Solution
The fourth proportional to 81,982.98, 122,988.47 and 37,613.52 is: 56,426.70
Step by Step Solution
- Step 1: Write the proportion equation
81,982.98 : 122,988.47 = 37,613.52 : x - Step 2: Convert to fraction form
81,982.98/122,988.47 = 37,613.52/x - Step 3: Cross multiply
81,982.98x = 122,988.47 × 37,613.52 - Step 4: Simplify right side
81,982.98x = 4,626,029,088.05 - Step 5: Solve for x
x = 4,626,029,088.05/81,982.98 - Step 6: Final answer
x = 56,426.70
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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.