Finding the Fourth Proportional to 90,666.26, 125,116.95 and 50,378.99
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Solution
The fourth proportional to 90,666.26, 125,116.95 and 50,378.99 is: 69,521.62
Step by Step Solution
- Step 1: Write the proportion equation
90,666.26 : 125,116.95 = 50,378.99 : x - Step 2: Convert to fraction form
90,666.26/125,116.95 = 50,378.99/x - Step 3: Cross multiply
90,666.26x = 125,116.95 × 50,378.99 - Step 4: Simplify right side
90,666.26x = 6,303,265,370.81 - Step 5: Solve for x
x = 6,303,265,370.81/90,666.26 - Step 6: Final answer
x = 69,521.62
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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.