Finding the Fourth Proportional to 77,718.96, 107,260.47 and 47,521.98
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Solution
The fourth proportional to 77,718.96, 107,260.47 and 47,521.98 is: 65,585.41
Step by Step Solution
- Step 1: Write the proportion equation
77,718.96 : 107,260.47 = 47,521.98 : x - Step 2: Convert to fraction form
77,718.96/107,260.47 = 47,521.98/x - Step 3: Cross multiply
77,718.96x = 107,260.47 × 47,521.98 - Step 4: Simplify right side
77,718.96x = 5,097,229,910.13 - Step 5: Solve for x
x = 5,097,229,910.13/77,718.96 - Step 6: Final answer
x = 65,585.41
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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.