Finding the Fourth Proportional to 74,613.75, 102,988.64 and 44,420.19
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Solution
The fourth proportional to 74,613.75, 102,988.64 and 44,420.19 is: 61,312.76
Step by Step Solution
- Step 1: Write the proportion equation
74,613.75 : 102,988.64 = 44,420.19 : x - Step 2: Convert to fraction form
74,613.75/102,988.64 = 44,420.19/x - Step 3: Cross multiply
74,613.75x = 102,988.64 × 44,420.19 - Step 4: Simplify right side
74,613.75x = 4,574,774,734.54 - Step 5: Solve for x
x = 4,574,774,734.54/74,613.75 - Step 6: Final answer
x = 61,312.76
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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.