Finding the Fourth Proportional to 74,131.08, 102,301.12 and 40,140.02
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Solution
The fourth proportional to 74,131.08, 102,301.12 and 40,140.02 is: 55,393.35
Step by Step Solution
- Step 1: Write the proportion equation
74,131.08 : 102,301.12 = 40,140.02 : x - Step 2: Convert to fraction form
74,131.08/102,301.12 = 40,140.02/x - Step 3: Cross multiply
74,131.08x = 102,301.12 × 40,140.02 - Step 4: Simplify right side
74,131.08x = 4,106,369,002.82 - Step 5: Solve for x
x = 4,106,369,002.82/74,131.08 - Step 6: Final answer
x = 55,393.35
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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.