Finding the Fourth Proportional to 74,364.68, 102,625.14 and 40,373.16
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Solution
The fourth proportional to 74,364.68, 102,625.14 and 40,373.16 is: 55,715.98
Step by Step Solution
- Step 1: Write the proportion equation
74,364.68 : 102,625.14 = 40,373.16 : x - Step 2: Convert to fraction form
74,364.68/102,625.14 = 40,373.16/x - Step 3: Cross multiply
74,364.68x = 102,625.14 × 40,373.16 - Step 4: Simplify right side
74,364.68x = 4,143,301,197.24 - Step 5: Solve for x
x = 4,143,301,197.24/74,364.68 - Step 6: Final answer
x = 55,715.98
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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.