Finding the Fourth Proportional to 74,158.24, 102,337.80 and 40,165.96
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Solution
The fourth proportional to 74,158.24, 102,337.80 and 40,165.96 is: 55,428.72
Step by Step Solution
- Step 1: Write the proportion equation
74,158.24 : 102,337.80 = 40,165.96 : x - Step 2: Convert to fraction form
74,158.24/102,337.80 = 40,165.96/x - Step 3: Cross multiply
74,158.24x = 102,337.80 × 40,165.96 - Step 4: Simplify right side
74,158.24x = 4,110,495,981.29 - Step 5: Solve for x
x = 4,110,495,981.29/74,158.24 - Step 6: Final answer
x = 55,428.72
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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.