Finding the Fourth Proportional to 74,636.24, 102,854.91 and 47,731.88
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Solution
The fourth proportional to 74,636.24, 102,854.91 and 47,731.88 is: 65,778.49
Step by Step Solution
- Step 1: Write the proportion equation
74,636.24 : 102,854.91 = 47,731.88 : x - Step 2: Convert to fraction form
74,636.24/102,854.91 = 47,731.88/x - Step 3: Cross multiply
74,636.24x = 102,854.91 × 47,731.88 - Step 4: Simplify right side
74,636.24x = 4,909,458,657.66 - Step 5: Solve for x
x = 4,909,458,657.66/74,636.24 - Step 6: Final answer
x = 65,778.49
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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.