Finding the Fourth Proportional to 81,102.99, 111,859.93 and 48,803.94
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Solution
The fourth proportional to 81,102.99, 111,859.93 and 48,803.94 is: 67,312.01
Step by Step Solution
- Step 1: Write the proportion equation
81,102.99 : 111,859.93 = 48,803.94 : x - Step 2: Convert to fraction form
81,102.99/111,859.93 = 48,803.94/x - Step 3: Cross multiply
81,102.99x = 111,859.93 × 48,803.94 - Step 4: Simplify right side
81,102.99x = 5,459,205,373.13 - Step 5: Solve for x
x = 5,459,205,373.13/81,102.99 - Step 6: Final answer
x = 67,312.01
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.