Finding the Fourth Proportional to 74,332.59, 102,579.05 and 40,341.09
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Solution
The fourth proportional to 74,332.59, 102,579.05 and 40,341.09 is: 55,670.75
Step by Step Solution
- Step 1: Write the proportion equation
74,332.59 : 102,579.05 = 40,341.09 : x - Step 2: Convert to fraction form
74,332.59/102,579.05 = 40,341.09/x - Step 3: Cross multiply
74,332.59x = 102,579.05 × 40,341.09 - Step 4: Simplify right side
74,332.59x = 4,138,150,688.16 - Step 5: Solve for x
x = 4,138,150,688.16/74,332.59 - Step 6: Final answer
x = 55,670.75
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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.