Finding the Fourth Proportional to 81,108.53, 121,663.09 and 24,948.26
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Solution
The fourth proportional to 81,108.53, 121,663.09 and 24,948.26 is: 37,422.48
Step by Step Solution
- Step 1: Write the proportion equation
81,108.53 : 121,663.09 = 24,948.26 : x - Step 2: Convert to fraction form
81,108.53/121,663.09 = 24,948.26/x - Step 3: Cross multiply
81,108.53x = 121,663.09 × 24,948.26 - Step 4: Simplify right side
81,108.53x = 3,035,282,401.72 - Step 5: Solve for x
x = 3,035,282,401.72/81,108.53 - Step 6: Final answer
x = 37,422.48
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1.5x scale
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.