Finding the Fourth Proportional to 91,071.77, 125,679.59 and 50,788.08
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Solution
The fourth proportional to 91,071.77, 125,679.59 and 50,788.08 is: 70,087.85
Step by Step Solution
- Step 1: Write the proportion equation
91,071.77 : 125,679.59 = 50,788.08 : x - Step 2: Convert to fraction form
91,071.77/125,679.59 = 50,788.08/x - Step 3: Cross multiply
91,071.77x = 125,679.59 × 50,788.08 - Step 4: Simplify right side
91,071.77x = 6,383,024,406.17 - Step 5: Solve for x
x = 6,383,024,406.17/91,071.77 - Step 6: Final answer
x = 70,087.85
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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.