Finding the Fourth Proportional to 74,835.08, 103,272.53 and 40,843.63
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Solution
The fourth proportional to 74,835.08, 103,272.53 and 40,843.63 is: 56,364.27
Step by Step Solution
- Step 1: Write the proportion equation
74,835.08 : 103,272.53 = 40,843.63 : x - Step 2: Convert to fraction form
74,835.08/103,272.53 = 40,843.63/x - Step 3: Cross multiply
74,835.08x = 103,272.53 × 40,843.63 - Step 4: Simplify right side
74,835.08x = 4,218,025,004.48 - Step 5: Solve for x
x = 4,218,025,004.48/74,835.08 - Step 6: Final answer
x = 56,364.27
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1.5x scale
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.