Finding the Fourth Proportional to 74,366.25, 102,587.38 and 47,480.49
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Solution
The fourth proportional to 74,366.25, 102,587.38 and 47,480.49 is: 65,498.79
Step by Step Solution
- Step 1: Write the proportion equation
74,366.25 : 102,587.38 = 47,480.49 : x - Step 2: Convert to fraction form
74,366.25/102,587.38 = 47,480.49/x - Step 3: Cross multiply
74,366.25x = 102,587.38 × 47,480.49 - Step 4: Simplify right side
74,366.25x = 4,870,899,070.22 - Step 5: Solve for x
x = 4,870,899,070.22/74,366.25 - Step 6: Final answer
x = 65,498.79
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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.