Finding the Fourth Proportional to 81,965.84, 122,862.62 and 37,556.07
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Solution
The fourth proportional to 81,965.84, 122,862.62 and 37,556.07 is: 56,294.64
Step by Step Solution
- Step 1: Write the proportion equation
81,965.84 : 122,862.62 = 37,556.07 : x - Step 2: Convert to fraction form
81,965.84/122,862.62 = 37,556.07/x - Step 3: Cross multiply
81,965.84x = 122,862.62 × 37,556.07 - Step 4: Simplify right side
81,965.84x = 4,614,237,500.48 - Step 5: Solve for x
x = 4,614,237,500.48/81,965.84 - Step 6: Final answer
x = 56,294.64
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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.