Finding the Fourth Proportional to 83,859.74, 115,724.54 and 48,070.84
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Solution
The fourth proportional to 83,859.74, 115,724.54 and 48,070.84 is: 66,336.67
Step by Step Solution
- Step 1: Write the proportion equation
83,859.74 : 115,724.54 = 48,070.84 : x - Step 2: Convert to fraction form
83,859.74/115,724.54 = 48,070.84/x - Step 3: Cross multiply
83,859.74x = 115,724.54 × 48,070.84 - Step 4: Simplify right side
83,859.74x = 5,562,975,846.41 - Step 5: Solve for x
x = 5,562,975,846.41/83,859.74 - Step 6: Final answer
x = 66,336.67
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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.