Finding the Fourth Proportional to 74,211.04, 102,409.68 and 40,674.88
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Solution
The fourth proportional to 74,211.04, 102,409.68 and 40,674.88 is: 56,130.48
Step by Step Solution
- Step 1: Write the proportion equation
74,211.04 : 102,409.68 = 40,674.88 : x - Step 2: Convert to fraction form
74,211.04/102,409.68 = 40,674.88/x - Step 3: Cross multiply
74,211.04x = 102,409.68 × 40,674.88 - Step 4: Simplify right side
74,211.04x = 4,165,501,444.84 - Step 5: Solve for x
x = 4,165,501,444.84/74,211.04 - Step 6: Final answer
x = 56,130.48
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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.